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HTML

              
                <main>
  <section class="group-period">
    <ul class="group__list">
      <li class="group__item flex-row-wrap group-1"><span>1</span></li>
      <li class="group__item flex-row-wrap group-2"><span>2</span></li>
      <li class="group__item flex-row-wrap group-3"><span>3</span></li>
      <li class="group__item flex-row-wrap group-4"><span>4</span></li>
      <li class="group__item flex-row-wrap group-5"><span>5</span></li>
      <li class="group__item flex-row-wrap group-6"><span>6</span></li>
      <li class="group__item flex-row-wrap group-7"><span>7</span></li>
      <li class="group__item flex-row-wrap group-8"><span>8</span></li>
      <li class="group__item flex-row-wrap group-9"><span>9</span></li>
      <li class="group__item flex-row-wrap group-10"><span>10</span></li>
      <li class="group__item flex-row-wrap group-11"><span>11</span></li>
      <li class="group__item flex-row-wrap group-12"><span>12</span></li>
      <li class="group__item flex-row-wrap group-13"><span>13</span></li>
      <li class="group__item flex-row-wrap group-14"><span>14</span></li>
      <li class="group__item flex-row-wrap group-15"><span>15</span><span>Pnictogens</span></li>
      <li class="group__item flex-row-wrap group-16"><span>16</span><span>Chalcogens</span></li>
      <li class="group__item flex-row-wrap group-17"><span>17</span><span>Halogens</span></li>
      <li class="group__item flex-row-wrap group-18"><span>18</span></li>
    </ul>
    <ul class="period__list">
      <li class="period__item flex-row-wrap period-1"><span>1</span></li>
      <li class="period__item flex-row-wrap period-2"><span>2</span></li>
      <li class="period__item flex-row-wrap period-3"><span>3</span></li>
      <li class="period__item flex-row-wrap period-4"><span>4</span></li>
      <li class="period__item flex-row-wrap period-5"><span>5</span></li>
      <li class="period__item flex-row-wrap period-6"><span>6</span></li>
      <li class="period__item flex-row-wrap period-7"><span>7</span></li>
    </ul>
  </section>
  <section class="dynamic-periodic-table">
    <div class="key flex-row-wrap">
      <abbr class="key__abbr">Symbol</abbr>
      <span class="key__name">Name</span>
      <span class="key__atomic-number">Atomic number</span>
      <span class="key__atomic-mass">Atomic mass</span>
    </div>
    <section class="legend flex-row-nowrap">
      <article class="legend__element-type flex-row-wrap">
        <div class="legend__element-type__metals flex-row-nowrap">
          <div class="legend__element-type__metals__alkali-metal legend-box flex-column-wrap" data-element-type="alkali-metal"><span>Alkali metals</span></div>
          <div class="legend__element-type__metals__alkali-earth-metal legend-box flex-column-wrap" data-element-type="alkali-earth-metal"><span>Alkali earth metals</span></div>
          <div class="legend__element-type__metals__lanthanoid-actinoid flex-row-wrap">
            <div class="lanthanoid flex-row-wrap legend-box" data-element-type="Lanthanoid"><span>Lanthanoids</span></div>
            <div class="actinoid flex-row-wrap legend-box" data-element-type="Actinoid"><span>Actinoids</span></div>
          </div>
          <div class="legend__element-type__metals__transition-metal legend-box flex-column-wrap" data-element-type="transition-metal"><span>Transition metals</span></div>
          <div class="legend__element-type__metals__post-transition-metal legend-box flex-column-wrap" data-element-type="post-transition-metal"><span>Post-transition metals</span></div>
        </div>
        <div class="legend__element-type__metalloid legend-box" data-element-type="metalloid"><span>Metalloids</span></div>
        <div class="legend__element-type__nonmetals flex-row-wrap">
          <div class="legend__element-type__nonmetals__other-nonmetal legend-box" data-element-type="other-nonmetal"><span>Other <br> nonmetals</span></div>
          <div class="legend__element-type__nonmetals__noble-gas legend-box" data-element-type="noble-gas"><span>Noble gases</span></div>
        </div>
        <div class="legend__element-type__unknown legend-box flex-row-wrap" data-element-type="unknown"><span>Unknown</span>
        </div>
      </article>
      <article class="legend__element-state flex-row-wrap">
        <div class="legend__element-state__gas legend-box flex-row-wrap" data-element-state="gas"><span>Gas</span></div>
        <div class="legend__element-state__liquid legend-box flex-row-wrap" data-element-state="liquid"><span>Liquid</span></div>
        <div class="legend__element-state__solid legend-box flex-row-wrap" data-element-state="solid"><span>Solid</span></div>
        <div class="legend__element-state__unknown legend-box flex-row-wrap" data-element-state="unknown"><span>Un-known</span></div>
      </article>
    </section>
    <section class="temperature flex-row-nowrap">
      <div class="temperature__inputs flex-row-nowrap">
        <input class="temperature__inputs__slider" name="temperature__inputs__slider" type="range" min="0" max="7000" value="273">
        <p class="temperature__inputs__result flex-row-wrap">273 K</p>
      </div>
      <div class="temperature__unit-conversion flex-row-wrap">
        <p class="celsius">0ºC</p>
        <p class="farenheit">31.4ºF</p>
      </div>
      <button class="reset__temperature flex-row-wrap"><span>Back to STP</span></button>
    </section>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="gas" data-element-melting-point="13.99" data-element-boiling-point="20.271" data-element-period="1" data-element-group="1" data-element-name="Hydrogen">
      <abbr class="element__abbr">H</abbr>
      <span class="element__name">Hydrogen</span>
      <span class="element__atomic-number">1</span>
      <span class="element__atomic-mass">1.008</span>
      <p class="tooltip right-tooltip">Hydrogen</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-metal" data-element-state="solid" data-element-melting-point="453.65" data-element-boiling-point="1603" data-element-period="2" data-element-group="1" data-element-name="Lithium">
      <abbr class="element__abbr">Li</abbr>
      <span class="element__name">Lithium</span>
      <span class="element__atomic-number">3</span>
      <span class="element__atomic-mass">6.940</span>
      <p class="tooltip top-tooltip">Lithium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-metal" data-element-state="solid" data-element-melting-point="370.944" data-element-boiling-point="1156.090" data-element-period="3" data-element-group="1" data-element-name="Sodium">
      <abbr class="element__abbr">Na</abbr>
      <span class="element__name">Sodium</span>
      <span class="element__atomic-number">11</span>
      <span class="element__atomic-mass">22.989</span>
      <p class="tooltip top-tooltip">Sodium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-metal" data-element-state="solid" data-element-melting-point="336.7" data-element-boiling-point="1032" data-element-period="4" data-element-group="1" data-element-name="Potassium">
      <abbr class="element__abbr">K</abbr>
      <span class="element__name">Potassium</span>
      <span class="element__atomic-number">19</span>
      <span class="element__atomic-mass">39.098</span>
      <p class="tooltip top-tooltip">Potassium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-metal" data-element-state="solid" data-element-melting-point="312.45" data-element-boiling-point="961" data-element-period="5" data-element-group="1" data-element-name="Rubidium">
      <abbr class="element__abbr">Rb</abbr>
      <span class="element__name">Rubidium</span>
      <span class="element__atomic-number">37</span>
      <span class="element__atomic-mass">85.468</span>
      <p class="tooltip top-tooltip">Rubidium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-metal" data-element-state="solid" data-element-melting-point="301.7" data-element-boiling-point="944" data-element-period="6" data-element-group="1" data-element-name="Caesium">
      <abbr class="element__abbr">Cs</abbr>
      <span class="element__name">Caesium</span>
      <span class="element__atomic-number">55</span>
      <span class="element__atomic-mass">132.905</span>
      <p class="tooltip top-tooltip">Caesium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-metal" data-element-state="solid" data-element-melting-point="300" data-element-boiling-point="950" data-element-period="7" data-element-group="1" data-element-name="Francium">
      <abbr class="element__abbr">Fr</abbr>
      <span class="element__name">Francium</span>
      <span class="element__atomic-number">87</span>
      <span class="element__atomic-mass">(223.000)</span>
      <p class="tooltip bottom-tooltip">Francium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-earth-metal" data-element-state="solid" data-element-melting-point="1560" data-element-boiling-point="2742" data-element-period="2" data-element-group="2" data-element-name="Beryllium">
      <abbr class="element__abbr">Be</abbr>
      <span class="element__name">Beryllium</span>
      <span class="element__atomic-number">4</span>
      <span class="element__atomic-mass">9.012</span>
      <p class="tooltip right-tooltip">Beryllium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-earth-metal" data-element-state="solid" data-element-melting-point="923" data-element-boiling-point="1363" data-element-period="3" data-element-group="2" data-element-name="Magnesium">
      <abbr class="element__abbr">Mg</abbr>
      <span class="element__name">Magne-sium</span>
      <span class="element__atomic-number">12</span>
      <span class="element__atomic-mass">24.305</span>
      <p class="tooltip right-tooltip">Magnesium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-earth-metal" data-element-state="solid" data-element-melting-point="1115" data-element-boiling-point="1757" data-element-period="4" data-element-group="2" data-element-name="Calcium">
      <abbr class="element__abbr">Ca</abbr>
      <span class="element__name">Calcium</span>
      <span class="element__atomic-number">20</span>
      <span class="element__atomic-mass">40.078</span>
      <p class="tooltip top-tooltip">Calcium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-earth-metal" data-element-state="solid" data-element-melting-point="1050" data-element-boiling-point="1650" data-element-period="5" data-element-group="2" data-element-name="Stronium">
      <abbr class="element__abbr">Sr</abbr>
      <span class="element__name">Stronium</span>
      <span class="element__atomic-number">38</span>
      <span class="element__atomic-mass">87.620</span>
      <p class="tooltip top-tooltip">Stronium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-earth-metal" data-element-state="solid" data-element-melting-point="1000" data-element-boiling-point="2118" data-element-period="6" data-element-group="2" data-element-name="Barium">
      <abbr class="element__abbr">Ba</abbr>
      <span class="element__name">Barium</span>
      <span class="element__atomic-number">56</span>
      <span class="element__atomic-mass">137.327</span>
      <p class="tooltip top-tooltip">Barium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="alkali-earth-metal" data-element-state="solid" data-element-melting-point="973" data-element-boiling-point="2010" data-element-period="7" data-element-group="2" data-element-name="Radium">
      <abbr class="element__abbr">Ra</abbr>
      <span class="element__name">Radium</span>
      <span class="element__atomic-number">88</span>
      <span class="element__atomic-mass">(226.000)</span>
      <p class="tooltip bottom-tooltip">Radium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1814" data-element-boiling-point="3109" data-element-period="4" data-element-group="3" data-element-name="Scandium">
      <abbr class="element__abbr">Sc</abbr>
      <span class="element__name">Scandium</span>
      <span class="element__atomic-number">21</span>
      <span class="element__atomic-mass">44.956</span>
      <p class="tooltip top-tooltip">Scandium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1799" data-element-boiling-point="3203" data-element-period="5" data-element-group="3" data-element-name="Yttrium">
      <abbr class="element__abbr">Y</abbr>
      <span class="element__name">Yttrium</span>
      <span class="element__atomic-number">39</span>
      <span class="element__atomic-mass">88.906</span>
      <p class="tooltip top-tooltip">Yttrium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-name="Lanthanoids" data-element-melting-point="0" data-element-boiling-point="7001" data-element-name="Lanthanoids">
      <span class="element__name">57-71</span>
      <span class="element__name">Lantha-noids</span>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-name="Actinoids" data-element-melting-point="0" data-element-boiling-point="7001">
      <span class="element__name">89-103</span>
      <span class="element__name">Actinoids</span>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1941" data-element-boiling-point="3560" data-element-period="4" data-element-group="4" data-element-name="Titanium">
      <abbr class="element__abbr">Ti</abbr>
      <span class="element__name">Titanium</span>
      <span class="element__atomic-number">22</span>
      <span class="element__atomic-mass">47.867</span>
      <p class="tooltip top-tooltip">Titanium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2128" data-element-boiling-point="4650" data-element-period="5" data-element-group="4" data-element-name="Zirconium">
      <abbr class="element__abbr">Zr</abbr>
      <span class="element__name">Zirconium</span>
      <span class="element__atomic-number">40</span>
      <span class="element__atomic-mass">91.224</span>
      <p class="tooltip top-tooltip">Zirconium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2506" data-element-boiling-point="4876" data-element-period="6" data-element-group="4" data-element-name="Hafnium">
      <abbr class="element__abbr">Hf</abbr>
      <span class="element__name">Hafnium</span>
      <span class="element__atomic-number">72</span>
      <span class="element__atomic-mass">178.490</span>
      <p class="tooltip top-tooltip">Hafnium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="4" data-element-name="Rutherfordium">
      <abbr class="element__abbr">Rf</abbr>
      <span class="element__name">Ruther-fordium</span>
      <span class="element__atomic-number">104</span>
      <span class="element__atomic-mass">(267.000)</span>
      <p class="tooltip bottom-tooltip">Rutherfordium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2183" data-element-boiling-point="3680" data-element-period="4" data-element-group="5" data-element-name="Vanadium">
      <abbr class="element__abbr">V</abbr>
      <span class="element__name">Vanadium</span>
      <span class="element__atomic-number">23</span>
      <span class="element__atomic-mass">50.942</span>
      <p class="tooltip top-tooltip">Vanadium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2750" data-element-boiling-point="5017" data-element-period="5" data-element-group="5" data-element-name="Niobium">
      <abbr class="element__abbr">Nb</abbr>
      <span class="element__name">Niobium</span>
      <span class="element__atomic-number">41</span>
      <span class="element__atomic-mass">92.906</span>
      <p class="tooltip top-tooltip">Niobium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="3290" data-element-boiling-point="5731" data-element-period="6" data-element-group="5" data-element-name="Tantalum">
      <abbr class="element__abbr">Ta</abbr>
      <span class="element__name">Tantalum</span>
      <span class="element__atomic-number">73</span>
      <span class="element__atomic-mass">180.947</span>
      <p class="tooltip top-tooltip">Tantalum</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="5" data-element-name="Dubnium">
      <abbr class="element__abbr">Db</abbr>
      <span class="element__name">Dubnium</span>
      <span class="element__atomic-number">105</span>
      <span class="element__atomic-mass">(268.000)</span>
      <p class="tooltip bottom-tooltip">Dubnium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2180" data-element-boiling-point="2944" data-element-period="4" data-element-group="6" data-element-name="Chromium">
      <abbr class="element__abbr">Cr</abbr>
      <span class="element__name">Chro-mium</span>
      <span class="element__atomic-number">24</span>
      <span class="element__atomic-mass">51.996</span>
      <p class="tooltip top-tooltip">Chromium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2896" data-element-boiling-point="4912" data-element-period="5" data-element-group="6" data-element-name="Molybdenum">
      <abbr class="element__abbr">Mo</abbr>
      <span class="element__name">Molyb-denum</span>
      <span class="element__atomic-number">42</span>
      <span class="element__atomic-mass">95.950</span>
      <p class="tooltip top-tooltip">Molyb-denum</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="3695" data-element-boiling-point="6203" data-element-period="6" data-element-group="6" data-element-name="Tungsten">
      <abbr class="element__abbr">W</abbr>
      <span class="element__name">Tungsten</span>
      <span class="element__atomic-number">74</span>
      <span class="element__atomic-mass">183.840</span>
      <p class="tooltip top-tooltip">Tungsten</p>

    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="6" data-element-name="Seaborgium">
      <abbr class="element__abbr">Sg</abbr>
      <span class="element__name">Seabor-gium</span>
      <span class="element__atomic-number">106</span>
      <span class="element__atomic-mass">(268.000)</span>
      <p class="tooltip bottom-tooltip">Seaborgium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1519" data-element-boiling-point="2334" data-element-period="4" data-element-group="7" data-element-name="Manganese">
      <abbr class="element__abbr">Mn</abbr>
      <span class="element__name">Manga-nese</span>
      <span class="element__atomic-number">25</span>
      <span class="element__atomic-mass">54.938</span>
      <p class="tooltip top-tooltip">Manganese</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2430" data-element-boiling-point="4538" data-element-period="5" data-element-group="7" data-element-name="Technetium">
      <abbr class="element__abbr">Tc</abbr>
      <span class="element__name">Techne-tium</span>
      <span class="element__atomic-number">43</span>
      <span class="element__atomic-mass">(98.000)</span>
      <p class="tooltip top-tooltip">Techne-tium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="3459" data-element-boiling-point="5903" data-element-period="6" data-element-group="7" data-element-name="Rhenium">
      <abbr class="element__abbr">Re</abbr>
      <span class="element__name">Rhenium</span>
      <span class="element__atomic-number">75</span>
      <span class="element__atomic-mass">186.207</span>
      <p class="tooltip top-tooltip">Rhenium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="7" data-element-name="Bohrium">
      <abbr class="element__abbr">Bh</abbr>
      <span class="element__name">Bohrium</span>
      <span class="element__atomic-number">107</span>
      <span class="element__atomic-mass">(270.000)</span>
      <p class="tooltip bottom-tooltip">Bohrium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1811" data-element-boiling-point="3134" data-element-period="4" data-element-group="8" data-element-name="Iron">
      <abbr class="element__abbr">Fe</abbr>
      <span class="element__name">Iron</span>
      <span class="element__atomic-number">26</span>
      <span class="element__atomic-mass">55.845</span>
      <p class="tooltip top-tooltip">Iron</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2607" data-element-boiling-point="4423" data-element-period="5" data-element-group="8" data-element-name="Ruthenium">
      <abbr class="element__abbr">Ru</abbr>
      <span class="element__name">Ruthe-nium</span>
      <span class="element__atomic-number">44</span>
      <span class="element__atomic-mass">101.070</span>
      <p class="tooltip top-tooltip">Ruthe-nium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="3306" data-element-boiling-point="5285" data-element-period="6" data-element-group="8" data-element-name="Osmium">
      <abbr class="element__abbr">Os</abbr>
      <span class="element__name">Osmium</span>
      <span class="element__atomic-number">76</span>
      <span class="element__atomic-mass">190.230</span>
      <p class="tooltip top-tooltip">Osmium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="8" data-element-name="Hassium">
      <abbr class="element__abbr">Hs</abbr>
      <span class="element__name">Hassium</span>
      <span class="element__atomic-number">108</span>
      <span class="element__atomic-mass">(277.000)</span>
      <p class="tooltip bottom-tooltip">Hassium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1768" data-element-boiling-point="3200" data-element-period="4" data-element-group="9" data-element-name="Cobalt">
      <abbr class="element__abbr">Co</abbr>
      <span class="element__name">Cobalt</span>
      <span class="element__atomic-number">27</span>
      <span class="element__atomic-mass">58.993</span>
      <p class="tooltip top-tooltip">Cobalt</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2237" data-element-boiling-point="3968" data-element-period="5" data-element-group="9" data-element-name="Rhodium">
      <abbr class="element__abbr">Rh</abbr>
      <span class="element__name">Rhodium</span>
      <span class="element__atomic-number">45</span>
      <span class="element__atomic-mass">102.905</span>
      <p class="tooltip top-tooltip">Rhodium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2719" data-element-boiling-point="4403" data-element-period="6" data-element-group="9" data-element-name="Iridium">
      <abbr class="element__abbr">Ir</abbr>
      <span class="element__name">Iridium</span>
      <span class="element__atomic-number">77</span>
      <span class="element__atomic-mass">192.217</span>
      <p class="tooltip top-tooltip">Iridium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="unknown" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="9" data-element-name="Meitnerium">
      <abbr class="element__abbr">Mt</abbr>
      <span class="element__name">Meitne-rium</span>
      <span class="element__atomic-number">109</span>
      <span class="element__atomic-mass">(278.000)</span>
      <p class="tooltip bottom-tooltip">Meitnerium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1728" data-element-boiling-point="3003" data-element-period="4" data-element-group="10" data-element-name="Nickel">
      <abbr class="element__abbr">Ni</abbr>
      <span class="element__name">Nickel</span>
      <span class="element__atomic-number">28</span>
      <span class="element__atomic-mass">58.963</span>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1828.05" data-element-boiling-point="3236" data-element-period="5" data-element-group="10" data-element-name="Palladium">
      <abbr class="element__abbr">Pd</abbr>
      <span class="element__name">Palladium</span>
      <span class="element__atomic-number">46</span>
      <span class="element__atomic-mass">106.420</span>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="2041.4" data-element-boiling-point="4098" data-element-period="6" data-element-group="10" data-element-name="Platinum">
      <abbr class="element__abbr">Pt</abbr>
      <span class="element__name">Platinum</span>
      <span class="element__atomic-number">78</span>
      <span class="element__atomic-mass">195.084</span>
    </div>
    <div class="element flex-row-wrap" data-element-type="unknown" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="10" data-element-name="Darmstadtium">
      <abbr class="element__abbr">Ds</abbr>
      <span class="element__name">Darmstad-tium</span>
      <span class="element__atomic-number">110</span>
      <span class="element__atomic-mass">(281.000)</span>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1357.77" data-element-boiling-point="2835" data-element-period="4" data-element-group="11" data-element-name="Copper">
      <abbr class="element__abbr">Cu</abbr>
      <span class="element__name">Copper</span>
      <span class="element__atomic-number">29</span>
      <span class="element__atomic-mass">63.546</span>
      <p class="tooltip top-tooltip">Copper</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1234.93" data-element-boiling-point="2435" data-element-period="5" data-element-group="11" data-element-name="Silver">
      <abbr class="element__abbr">Ag</abbr>
      <span class="element__name">Silver</span>
      <span class="element__atomic-number">47</span>
      <span class="element__atomic-mass">107.868</span>
      <p class="tooltip top-tooltip">Silver</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="1337.33" data-element-boiling-point="3243" data-element-period="6" data-element-group="11" data-element-name="Gold">
      <abbr class="element__abbr">Au</abbr>
      <span class="element__name">Gold</span>
      <span class="element__atomic-number">79</span>
      <span class="element__atomic-mass">107.868</span>
      <p class="tooltip top-tooltip">Gold</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="unknown" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="11" data-element-name="Roentgenium">
      <abbr class="element__abbr">Rg</abbr>
      <span class="element__name">Roentge-nium</span>
      <span class="element__atomic-number">111</span>
      <span class="element__atomic-mass">(282.000)</span>
      <p class="tooltip bottom-tooltip">Roentge-nium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="692.68" data-element-boiling-point="1180" data-element-period="4" data-element-group="12" data-element-name="Zinc">
      <abbr class="element__abbr">Zn</abbr>
      <span class="element__name">Zinc</span>
      <span class="element__atomic-number">30</span>
      <span class="element__atomic-mass">65.380</span>
      <p class="tooltip top-tooltip">Zinc</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="solid" data-element-melting-point="594.22" data-element-boiling-point="1040" data-element-period="5" data-element-group="12" data-element-name="Cadmium">
      <abbr class="element__abbr">Cd</abbr>
      <span class="element__name">Cadmium</span>
      <span class="element__atomic-number">48</span>
      <span class="element__atomic-mass">112.414</span>
      <p class="tooltip top-tooltip">Cadmium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="transition-metal" data-element-state="liquid" data-element-melting-point="234.3210" data-element-boiling-point="629.88" data-element-period="6" data-element-group="12" data-element-name="Mercury">
      <abbr class="element__abbr">Hg</abbr>
      <span class="element__name">Mercury</span>
      <span class="element__atomic-number">80</span>
      <span class="element__atomic-mass">200.592</span>
      <p class="tooltip top-tooltip">Mercury</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="post-transition-metal" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="12" data-element-name="Copernicium">
      <abbr class="element__abbr">Cn</abbr>
      <span class="element__name">Coperni-cium</span>
      <span class="element__atomic-number">112</span>
      <span class="element__atomic-mass">(285.000)</span>
      <p class="tooltip bottom-tooltip">Copernicium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="metalloid" data-element-state="solid" data-element-melting-point="2349" data-element-boiling-point="4200" data-element-period="2" data-element-group="13" data-element-name="Boron">
      <abbr class="element__abbr">B</abbr>
      <span class="element__name">Boron</span>
      <span class="element__atomic-number">5</span>
      <span class="element__atomic-mass">10.810</span>
      <p class="tooltip left-tooltip">Boron</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="post-transition-metal" data-element-state="solid" data-element-melting-point="933.47" data-element-boiling-point="2743" data-element-period="3" data-element-group="13" data-element-name="Aluminium">
      <abbr class="element__abbr">Al</abbr>
      <span class="element__name">Alumi-nium</span>
      <span class="element__atomic-number">13</span>
      <span class="element__atomic-mass">26.982</span>
      <p class="tooltip left-tooltip">Aluminium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="post-transition-metal" data-element-state="solid" data-element-melting-point="302.9146" data-element-boiling-point="2673" data-element-period="4" data-element-group="13" data-element-name="Galium">
      <abbr class="element__abbr">Ga</abbr>
      <span class="element__name">Galium</span>
      <span class="element__atomic-number">31</span>
      <span class="element__atomic-mass">69.723</span>
      <p class="tooltip top-tooltip">Galium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="post-transition-metal" data-element-state="solid" data-element-melting-point="429.7485" data-element-boiling-point="2345" data-element-period="5" data-element-group="13" data-element-name="Indium">
      <abbr class="element__abbr">In</abbr>
      <span class="element__name">Indium</span>
      <span class="element__atomic-number">49</span>
      <span class="element__atomic-mass">114.818</span>
      <p class="tooltip top-tooltip">Indium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="post-transition-metal" data-element-state="solid" data-element-melting-point="577" data-element-boiling-point="1746" data-element-period="6" data-element-group="13" data-element-name="Thalium">
      <abbr class="element__abbr">Th</abbr>
      <span class="element__name">Thalium</span>
      <span class="element__atomic-number">81</span>
      <span class="element__atomic-mass">204.380</span>
      <p class="tooltip top-tooltip">Thalium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="unknown" data-element-state="unknown" data-element-period="7" data-element-group="13" data-element-name="Nihonium" data-element-melting-point="unknown" data-element-boiling-point="unknown">
      <abbr class="element__abbr">Nh</abbr>
      <span class="element__name">Nihonium</span>
      <span class="element__atomic-number">113</span>
      <span class="element__atomic-mass">(286.000)</span>
      <p class="tooltip bottom-tooltip">Nihonium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="solid" data-element-melting-point="3915" data-element-boiling-point="4600" data-element-period="2" data-element-group="14" data-element-name="Carbon">
      <abbr class="element__abbr">C</abbr>
      <span class="element__name">Carbon</span>
      <span class="element__atomic-number">6</span>
      <span class="element__atomic-mass">12.001</span>
      <p class="tooltip top-tooltip">Carbon</p>

    </div>
    <div class="element flex-row-wrap" data-element-type="metalloid" data-element-state="solid" data-element-melting-point="1687" data-element-boiling-point="3538" data-element-period="3" data-element-group="14" data-element-name="Silicon">
      <abbr class="element__abbr">Si</abbr>
      <span class="element__name">Silicon</span>
      <span class="element__atomic-number">14</span>
      <span class="element__atomic-mass">28.085</span>
      <p class="tooltip top-tooltip">Silicon</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="metalloid" data-element-state="solid" data-element-melting-point="1211.40" data-element-boiling-point="3106" data-element-period="4" data-element-group="14" data-element-name="Germanium">
      <abbr class="element__abbr">Ge</abbr>
      <span class="element__name">Germa-nium</span>
      <span class="element__atomic-number">32</span>
      <span class="element__atomic-mass">72.630</span>
      <p class="tooltip top-tooltip">Germa-nium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="post-transition-metal" data-element-state="solid" data-element-melting-point="505.08" data-element-boiling-point="2875" data-element-period="5" data-element-group="14" data-element-name="Tin">
      <abbr class="element__abbr">Sn</abbr>
      <span class="element__name">Tin</span>
      <span class="element__atomic-number">50</span>
      <span class="element__atomic-mass">118.710</span>
      <p class="tooltip top-tooltip">Tin</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="post-transition-metal" data-element-state="solid" data-element-melting-point="600.61" data-element-boiling-point="2022" data-element-period="6" data-element-group="14" data-element-name="Lead">
      <abbr class="element__abbr">Pb</abbr>
      <span class="element__name">Lead</span>
      <span class="element__atomic-number">82</span>
      <span class="element__atomic-mass">207.200</span>
      <p class="tooltip top-tooltip">Lead</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="post-transition-metal" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="14" data-element-name="Flerovium">
      <abbr class="element__abbr">Fl</abbr>
      <span class="element__name">Flerovium</span>
      <span class="element__atomic-number">114</span>
      <span class="element__atomic-mass">(289.000)</span>
      <p class="tooltip bottom-tooltip">Flevorium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="gas" data-element-melting-point="63.15" data-element-boiling-point="77.355" data-element-period="2" data-element-group="15" data-element-name="Nitrogen">
      <abbr class="element__abbr">N</abbr>
      <span class="element__name">Nitrogen</span>
      <span class="element__atomic-number">7</span>
      <span class="element__atomic-mass">14.007</span>
      <p class="tooltip top-tooltip">Nitrogen</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="solid" data-element-melting-point="317.2" data-element-boiling-point="553" data-element-period="3" data-element-group="15" data-element-name="Phosphorus">
      <abbr class="element__abbr">P</abbr>
      <span class="element__name">Phospho-rus</span>
      <span class="element__atomic-number">15</span>
      <span class="element__atomic-mass">30.974</span>
      <p class="tooltip top-tooltip">Phospho-rus</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="metalloid" data-element-state="solid" data-element-melting-point="887" data-element-boiling-point="887" data-element-period="4" data-element-group="15" data-element-name="Arsenic">
      <abbr class="element__abbr">As</abbr>
      <span class="element__name">Arsenic</span>
      <span class="element__atomic-number">33</span>
      <span class="element__atomic-mass">74.922</span>
      <p class="tooltip top-tooltip">Arsenic</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="metalloid" data-element-state="solid" data-element-melting-point="903.78" data-element-boiling-point="1908" data-element-period="5" data-element-group="15" data-element-name="Antimony">
      <abbr class="element__abbr">Sb</abbr>
      <span class="element__name">Antimony</span>
      <span class="element__atomic-number">51</span>
      <span class="element__atomic-mass">121.760</span>
      <p class="tooltip top-tooltip">Antimony</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="post-transition-metal" data-element-state="solid" data-element-melting-point="544.7" data-element-boiling-point="1837" data-element-period="6" data-element-group="15" data-element-name="Bismuth">
      <abbr class="element__abbr">Bi</abbr>
      <span class="element__name">Bismuth</span>
      <span class="element__atomic-number">83</span>
      <span class="element__atomic-mass">208.980</span>
      <p class="tooltip top-tooltip">Bismuth</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="unknown" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="15" data-element-name="Moscovium">
      <abbr class="element__abbr">Mc</abbr>
      <span class="element__name">Mosco-vium</span>
      <span class="element__atomic-number">115</span>
      <span class="element__atomic-mass">(290.000)</span>
      <p class="tooltip bottom-tooltip">Moscovium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="gas" data-element-melting-point="54.36" data-element-boiling-point="90.188" data-element-period="2" data-element-group="16" data-element-name="Oxygen">
      <abbr class="element__abbr">O</abbr>
      <span class="element__name">Oxygen</span>
      <span class="element__atomic-number">8</span>
      <span class="element__atomic-mass">15.999</span>
      <p class="tooltip top-tooltip">Oxygen</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="solid" data-element-melting-point="54.36" data-element-boiling-point="717.8" data-element-period="3" data-element-group="16" data-element-name="Sulfur">
      <abbr class="element__abbr">S</abbr>
      <span class="element__name">Sulfur</span>
      <span class="element__atomic-number">16</span>
      <span class="element__atomic-mass">32.060</span>
      <p class="tooltip top-tooltip">Sulfur</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="solid" data-element-melting-point="494" data-element-boiling-point="958" data-element-period="4" data-element-group="16" data-element-name="Selenium">
      <abbr class="element__abbr">Se</abbr>
      <span class="element__name">Selenium</span>
      <span class="element__atomic-number">34</span>
      <span class="element__atomic-mass">78.971</span>
      <p class="tooltip top-tooltip">Selenium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="metalloid" data-element-state="solid" data-element-melting-point="722.66" data-element-boiling-point="1261" data-element-period="5" data-element-group="16" data-element-name="Tellurium">
      <abbr class="element__abbr">Te</abbr>
      <span class="element__name">Tellurium</span>
      <span class="element__atomic-number">52</span>
      <span class="element__atomic-mass">127.600</span>
      <p class="tooltip top-tooltip">Tellurium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="post-transition-metal" data-element-state="solid" data-element-melting-point="527" data-element-boiling-point="1235" data-element-period="6" data-element-group="16" data-element-name="Polonium">
      <abbr class="element__abbr">Po</abbr>
      <span class="element__name">Polonium</span>
      <span class="element__atomic-number">84</span>
      <span class="element__atomic-mass">(209.000)</span>
      <p class="tooltip top-tooltip">Polonium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="unknown" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="16" data-element-name="Livemorium">
      <abbr class="element__abbr">Lv</abbr>
      <span class="element__name">Livemo-rium</span>
      <span class="element__atomic-number">116</span>
      <span class="element__atomic-mass">(293.000)</span>
      <p class="tooltip bottom-tooltip">Livemorium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="gas" data-element-melting-point="53.48" data-element-boiling-point="85.03" data-element-period="2" data-element-group="17" data-element-name="Fluorine">
      <abbr class="element__abbr">F</abbr>
      <span class="element__name">Fluorine</span>
      <span class="element__atomic-number">9</span>
      <span class="element__atomic-mass">18.998</span>
      <p class="tooltip top-tooltip">Fluorine</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="gas" data-element-melting-point="171.6" data-element-boiling-point="239.11" data-element-period="3" data-element-group="17" data-element-name="Chlorine">
      <abbr class="element__abbr">Cl</abbr>
      <span class="element__name">Chlorine</span>
      <span class="element__atomic-number">17</span>
      <span class="element__atomic-mass">35.450</span>
      <p class="tooltip top-tooltip">Chlorine</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="liquid" data-element-melting-point="265.8" data-element-boiling-point="332" data-element-period="4" data-element-group="17" data-element-name="Bromine">
      <abbr class="element__abbr">Br</abbr>
      <span class="element__name">Bromine</span>
      <span class="element__atomic-number">35</span>
      <span class="element__atomic-mass">79.904</span>
      <p class="tooltip top-tooltip">Bromine</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="other-nonmetal" data-element-state="solid" data-element-melting-point="386.85" data-element-boiling-point="457.4" data-element-period="5" data-element-group="17" data-element-name="Iodine">
      <abbr class="element__abbr">I</abbr>
      <span class="element__name">Iodine</span>
      <span class="element__atomic-number">53</span>
      <span class="element__atomic-mass">126.904</span>
      <p class="tooltip top-tooltip">Iodine</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="metalloid" data-element-state="solid" data-element-melting-point="575" data-element-boiling-point="610" data-element-period="7" data-element-group="17" data-element-name="Astatine">
      <abbr class="element__abbr">At</abbr>
      <span class="element__name">Astatine</span>
      <span class="element__atomic-number">85</span>
      <span class="element__atomic-mass">(210.000)</span>
      <p class="tooltip top-tooltip">Astatine</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="unknown" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="17" data-element-name="Tennessine">
      <abbr class="element__abbr">Ts</abbr>
      <span class="element__name">Tennes-sine</span>
      <span class="element__atomic-number">117</span>
      <span class="element__atomic-mass">(294.000)</span>
      <p class="tooltip bottom-tooltip">Tennessine</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="noble-gas" data-element-state="gas" data-element-melting-point="0.95" data-element-boiling-point="4.222" data-element-period="1" data-element-group="18" data-element-name="Helium">
      <abbr class="element__abbr">He</abbr>
      <span class="element__name">Helium</span>
      <span class="element__atomic-number">2</span>
      <span class="element__atomic-mass">4.002</span>
      <p class="tooltip left-tooltip">Helium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="noble-gas" data-element-state="gas" data-element-melting-point="24.56" data-element-boiling-point="27.104" data-element-period="2" data-element-group="18" data-element-name="Neon">
      <abbr class="element__abbr">Ne</abbr>
      <span class="element__name">Neon</span>
      <span class="element__atomic-number">10</span>
      <span class="element__atomic-mass">20.180</span>
      <p class="tooltip top-tooltip">Neon</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="noble-gas" data-element-state="gas" data-element-melting-point="83.81" data-element-boiling-point="87.302" data-element-period="3" data-element-group="18" data-element-name="Argon">
      <abbr class="element__abbr">Ar</abbr>
      <span class="element__name">Argon</span>
      <span class="element__atomic-number">18</span>
      <span class="element__atomic-mass">39.948</span>
      <p class="tooltip top-tooltip">Argon</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="noble-gas" data-element-state="gas" data-element-melting-point="115.78" data-element-boiling-point="119.93" data-element-period="4" data-element-group="18" data-element-name="Krypton">
      <abbr class="element__abbr">Kr</abbr>
      <span class="element__name">Krypton</span>
      <span class="element__atomic-number">36</span>
      <span class="element__atomic-mass">83.798</span>
      <p class="tooltip top-tooltip">Krypton</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="noble-gas" data-element-state="gas" data-element-melting-point="161.40" data-element-boiling-point="165.051" data-element-period="5" data-element-group="18" data-element-name="Xenon">
      <abbr class="element__abbr">Xe</abbr>
      <span class="element__name">Xenon</span>
      <span class="element__atomic-number">54</span>
      <span class="element__atomic-mass">131.293</span>
      <p class="tooltip top-tooltip">Xenon</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="noble-gas" data-element-state="gas" data-element-melting-point="202" data-element-boiling-point="211.5" data-element-period="6" data-element-group="18" data-element-name="Radon">
      <abbr class="element__abbr">Rn</abbr>
      <span class="element__name">Radon</span>
      <span class="element__atomic-number">86</span>
      <span class="element__atomic-mass">(222.000)</span>
      <p class="tooltip top-tooltip">Radon</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="unknown" data-element-state="unknown" data-element-melting-point="unknown" data-element-boiling-point="unknown" data-element-period="7" data-element-group="18" data-element-symbol="Og" data-element-name="Oganesson">
      <abbr class="element__abbr">Og</abbr>
      <span class="element__name">Oganes-son</span>
      <span class="element__atomic-number">118</span>
      <span class="element__atomic-mass">(294.000)</span>
      <p class="tooltip bottom-tooltip">Oganesson</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1193" data-element-boiling-point="3737" data-element-period="6" data-element-name="Lanthanum">
      <abbr class="element__abbr">La</abbr>
      <span class="element__name">Lantha-num</span>
      <span class="element__atomic-number">57</span>
      <span class="element__atomic-mass">138.905</span>
      <p class="tooltip top-tooltip">Lanthanum</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1068" data-element-boiling-point="3716" data-element-period="6" data-element-name="Cerium">
      <abbr class="element__abbr">Ce</abbr>
      <span class="element__name">Cerium</span>
      <span class="element__atomic-number">58</span>
      <span class="element__atomic-mass">140.116</span>
      <p class="tooltip top-tooltip">Cerium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1208" data-element-boiling-point="3403" data-element-period="6" data-element-name="Praseodymium">
      <abbr class="element__abbr">Pr</abbr>
      <span class="element__name">Praseod-ymium</span>
      <span class="element__atomic-number">59</span>
      <span class="element__atomic-mass">140.907</span>
      <p class="tooltip top-tooltip">Praseodymium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1297" data-element-boiling-point="3347" data-element-period="6" data-element-name="Neodymium">
      <abbr class="element__abbr">Nd</abbr>
      <span class="element__name">Neod-ymium</span>
      <span class="element__atomic-number">60</span>
      <span class="element__atomic-mass">144.242</span>
      <p class="tooltip top-tooltip">Neodymium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1315" data-element-boiling-point="3273" data-element-period="6" data-element-name="Promethium">
      <abbr class="element__abbr">Pm</abbr>
      <span class="element__name">Prome-thium</span>
      <span class="element__atomic-number">61</span>
      <span class="element__atomic-mass">(145,000)</span>
      <p class="tooltip top-tooltip">Promethium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1345" data-element-boiling-point="2173" data-element-period="6" data-element-name="Samarium">
      <abbr class="element__abbr">Sm</abbr>
      <span class="element__name">Samarium</span>
      <span class="element__atomic-number">62</span>
      <span class="element__atomic-mass">150.360</span>
      <p class="tooltip top-tooltip">Samarium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1099" data-element-boiling-point="1802" data-element-period="6" data-element-name="Europium">
      <abbr class="element__abbr">Eu</abbr>
      <span class="element__name">Europium</span>
      <span class="element__atomic-number">63</span>
      <span class="element__atomic-mass">151.964</span>
      <p class="tooltip top-tooltip">Europium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1585" data-element-boiling-point="3273" data-element-period="6" data-element-name="Gadolinium">
      <abbr class="element__abbr">Gd</abbr>
      <span class="element__name">Gadoli-nium</span>
      <span class="element__atomic-number">64</span>
      <span class="element__atomic-mass">157.250</span>
      <p class="tooltip top-tooltip">Gadolinium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1629" data-element-boiling-point="3396" data-element-period="6" data-element-name="Terbium">
      <abbr class="element__abbr">Tb</abbr>
      <span class="element__name">Terbium</span>
      <span class="element__atomic-number">65</span>
      <span class="element__atomic-mass">157.250</span>
      <p class="tooltip top-tooltip">Terbium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1680" data-element-boiling-point="2840" data-element-period="6" data-element-name="Dysprosium">
      <abbr class="element__abbr">Dy</abbr>
      <span class="element__name">Dyspro-sium</span>
      <span class="element__atomic-number">66</span>
      <span class="element__atomic-mass">162.500</span>
      <p class="tooltip top-tooltip">Dysprosium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1734" data-element-boiling-point="2873" data-element-period="6" data-element-name="Holmium">
      <abbr class="element__abbr">Ho</abbr>
      <span class="element__name">Holmium</span>
      <span class="element__atomic-number">67</span>
      <span class="element__atomic-mass">164.930</span>
      <p class="tooltip top-tooltip">Holmium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1802" data-element-boiling-point="3141" data-element-period="6" data-element-name="Erbium">
      <abbr class="element__abbr">Er</abbr>
      <span class="element__name">Erbium</span>
      <span class="element__atomic-number">68</span>
      <span class="element__atomic-mass">167.259</span>
      <p class="tooltip top-tooltip">Erbium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1818" data-element-boiling-point="2223" data-element-period="6" data-element-name="Thulium">
      <abbr class="element__abbr">Tm</abbr>
      <span class="element__name">Thulium</span>
      <span class="element__atomic-number">69</span>
      <span class="element__atomic-mass">168.934</span>
      <p class="tooltip top-tooltip">Thulium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1097" data-element-boiling-point="1469" data-element-period="6" data-element-name="Ytterbium">
      <abbr class="element__abbr">Yb</abbr>
      <span class="element__name">Ytterbium</span>
      <span class="element__atomic-number">70</span>
      <span class="element__atomic-mass">173.045</span>
      <p class="tooltip top-tooltip">Ytterbium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Lanthanoid" data-element-state="solid" data-element-melting-point="1925" data-element-boiling-point="3675" data-element-period="6" data-element-name="Lutetium">
      <abbr class="element__abbr">Lu</abbr>
      <span class="element__name">Lutetium</span>
      <span class="element__atomic-number">71</span>
      <span class="element__atomic-mass">174.967</span>
      <p class="tooltip top-tooltip">Lutetium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1500" data-element-boiling-point="3500" data-element-period="7" data-element-name="Actinium">
      <abbr class="element__abbr">Ac</abbr>
      <span class="element__name">Actinium</span>
      <span class="element__atomic-number">89</span>
      <span class="element__atomic-mass">(227.000)</span>
      <p class="tooltip bottom-tooltip">Actinium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="2023" data-element-boiling-point="5061" data-element-period="7" data-element-name="Thorium">
      <abbr class="element__abbr">Th</abbr>
      <span class="element__name">Thorium</span>
      <span class="element__atomic-number">90</span>
      <span class="element__atomic-mass">232.038</span>
      <p class="tooltip bottom-tooltip">Thorium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1841" data-element-boiling-point="4300" data-element-period="7" data-element-name="Protactinium">
      <abbr class="element__abbr">Pa</abbr>
      <span class="element__name">Protacti-nium</span>
      <span class="element__atomic-number">91</span>
      <span class="element__atomic-mass">231.035</span>
      <p class="tooltip bottom-tooltip">Protactinium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1405.3" data-element-boiling-point="4404" data-element-period="7" data-element-name="Uranium">
      <abbr class="element__abbr">U</abbr>
      <span class="element__name">Uranium</span>
      <span class="element__atomic-number">92</span>
      <span class="element__atomic-mass">238.028</span>
      <p class="tooltip bottom-tooltip">Uranium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="912" data-element-boiling-point="4447" data-element-period="7" data-element-name="Neptunium">
      <abbr class="element__abbr">Np</abbr>
      <span class="element__name">Neptu-nium</span>
      <span class="element__atomic-number">93</span>
      <span class="element__atomic-mass">(237.000)</span>
      <p class="tooltip bottom-tooltip">Neptunium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="912.5" data-element-boiling-point="3505" data-element-period="7" data-element-name="Plutonium">
      <abbr class="element__abbr">Pu</abbr>
      <span class="element__name">Pluto-nium</span>
      <span class="element__atomic-number">94</span>
      <span class="element__atomic-mass">(244.000)</span>
      <p class="tooltip bottom-tooltip">Plutonium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1449" data-element-boiling-point="2880" data-element-period="7" data-element-name="Americium">
      <abbr class="element__abbr">Am</abbr>
      <span class="element__name">Ameri-cium</span>
      <span class="element__atomic-number">95</span>
      <span class="element__atomic-mass">(243.000)</span>
      <p class="tooltip bottom-tooltip">Americium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1613" data-element-boiling-point="3383" data-element-period="7" data-element-name="Curium">
      <abbr class="element__abbr">Cm</abbr>
      <span class="element__name">Curium</span>
      <span class="element__atomic-number">96</span>
      <span class="element__atomic-mass">(247.000)</span>
      <p class="tooltip bottom-tooltip">Curium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1259" data-element-boiling-point="2900" data-element-period="7" data-element-name="Berkelium">
      <abbr class="element__abbr">Bk</abbr>
      <span class="element__name">Berkelium</span>
      <span class="element__atomic-number">97</span>
      <span class="element__atomic-mass">(247.000)</span>
      <p class="tooltip bottom-tooltip">Berkelium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1173" data-element-boiling-point="1743" data-element-period="7" data-element-name="Californium">
      <abbr class="element__abbr">Cf</abbr>
      <span class="element__name">Califor-nium</span>
      <span class="element__atomic-number">98</span>
      <span class="element__atomic-mass">(251.000)</span>
      <p class="tooltip bottom-tooltip">Californium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1133" data-element-boiling-point="1269" data-element-period="7" data-element-name="Einsteinium">
      <abbr class="element__abbr">Es</abbr>
      <span class="element__name">Einstei-nium</span>
      <span class="element__atomic-number">99</span>
      <span class="element__atomic-mass">(252.000)</span>
      <p class="tooltip bottom-tooltip">Einsteinium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1133" data-element-boiling-point="1269" data-element-period="7" data-element-name="Fermium">
      <abbr class="element__abbr">Fm</abbr>
      <span class="element__name">Fermium</span>
      <span class="element__atomic-number">100</span>
      <span class="element__atomic-mass">(257.000)</span>
      <p class="tooltip bottom-tooltip">Fermium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1133" data-element-boiling-point="unknown" data-element-period="7" data-element-name="Mendelevium">
      <abbr class="element__abbr">Md</abbr>
      <span class="element__name">Mendele-vium</span>
      <span class="element__atomic-number">101</span>
      <span class="element__atomic-mass">(258.000)</span>
      <p class="tooltip bottom-tooltip">Mendelevium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1100" data-element-boiling-point="unknown" data-element-period="7" data-element-name="Nobelium">
      <abbr class="element__abbr">No</abbr>
      <span class="element__name">Nobelium</span>
      <span class="element__atomic-number">102</span>
      <span class="element__atomic-mass">(259.000)</span>
      <p class="tooltip bottom-tooltip">Nobelium</p>
    </div>
    <div class="element flex-row-wrap" data-element-type="Actinoid" data-element-state="solid" data-element-melting-point="1900" data-element-boiling-point="unknown" data-element-period="7" data-element-name="Lawrencium">
      <abbr class="element__abbr">Lr</abbr>
      <span class="element__name">Lawren-cium</span>
      <span class="element__atomic-number">103</span>
      <span class="element__atomic-mass">(266.000)</span>
      <p class="tooltip bottom-tooltip">Lawrencium</p>
    </div>
  </section>
  <section class="modal flex-row-wrap">
    <dialog class="modal__dialog" open>
      <article class="modal__content">
        <div class="modal__content__properties"></div>
        <div class="atom">
          <div class="atom__core"></div>
        </div>
      </article>
      <a class="modal__close">
        <svg viewBox="0 0 24 24">
          <path d="M19 6.41l-1.41-1.41-5.59 5.59-5.59-5.59-1.41 1.41 5.59 5.59-5.59 5.59 1.41 1.41 5.59-5.59 5.59 5.59 1.41-1.41-5.59-5.59z" />
          <path d="M0 0h24v24h-24z" fill="none" />
        </svg>
      </a>
    </dialog>
  </section>
</main>
              
            
!

CSS

              
                // Variables
$c-main: hsla(0, 100%, 100%, 1);
$c-element-other-nonmetals: hsla(184, 9%, 62%, 1);
$c-element-alkali-metals: hsla(6, 78%, 57%, 1);
$c-element-alkali-earth-metals: hsla(28, 80%, 52%, 1);
$c-element-transition-metals: hsla(48, 89%, 50%, 1);
$c-element-lanthanoids: hsla(21, 78%, 81%, 1);
$c-element-actinoids: hsla(20, 74%, 68%, 1);
$c-element-post-transition-metals: hsla(168, 76%, 42%, 1);
$c-element-metalloids: hsla(204, 70%, 53%, 1);
$c-element-noble-gas: hsla(282, 44%, 47%, 1);
$c-element-unknown: darken($c-element-transition-metals, 12%);
$c-element-self: (
  hydrogen: "hsla(0, 100%, 100%, 1)"
);
$c-shadow-main: hsla(0, 1%, 53%, 1);
$bg-main: hsla(210, 3%, 15%, 1);
$table-min-width: 1300px;
$element-width: 70px;
$grid-gap: 5px;
$modal-width: 750px;
$cubic-bezier: cubic-bezier(0.23, 1, 0.32, 1);
$scale: 1.075;

// Fonts
@import url("https://fonts.googleapis.com/css?family=Josefin+Sans|Montserrat");

// General
* {
  box-sizing: border-box;
}

body {
  display: flex;
  justify-content: center;
  height: 100%;
  font-size: 16px; // 1rem=16px
  color: $c-main;
  font-family: "Josefin Sans", "Roboto", sans-serif;
  overflow: auto;
  @media screen and (max-width: $table-min-width + $element-width * 2 + $grid-gap * 2) {
    justify-content: normal;
  }
}

main {
  display: flex;
  flex-flow: row wrap;
  align-content: center;
  justify-content: center;
  width: 100%;
  height: 100dvh;
  @media screen and (max-width: $table-min-width + $element-width * 2 + $grid-gap * 2) {
    justify-content: normal;
  }
  @media screen and (min-aspect-ratio: 1 / 1) {
    height: 150vh;
  }
  @media screen and (min-aspect-ratio: 1 / 4) {
    height: 155vh;
  }
  @media screen and (max-aspect-ratio: 1 / 5) {
    height: 50vw;
  }
}

a {
  color: inherit;
  text-decoration: none;
  outline: none;
}

li {
  position: relative;
  cursor: pointer;
  z-index: 10;
}

sup {
  vertical-align: super;
  font-size: smaller;
}

// Specific
.flex-row-wrap {
  display: flex;
  flex-flow: row wrap;
}

.flex-row-nowrap {
  display: flex;
  flex-flow: row nowrap;
}

.flex-column-nowrap {
  display: flex;
  flex-flow: column nowrap;
}

.flex-column-wrap {
  display: flex;
  flex-flow: column wrap;
}

.group-period {
  height: 100%;
  width: 100%;
  position: relative;
  min-width: $table-min-width + $element-width * 2 + $grid-gap * 2;
  background: radial-gradient(lighten($bg-main, 25%), $bg-main);
}

.group,
.period {
  &__list {
    background: lighten($bg-main, 2.5%);
    box-shadow: 0 0 0.5rem $bg-main;
  }
  &__item {
    cursor: default;
    span {
      transition: all 0.2s ease;
    }
    &:hover {
      span {
        box-shadow: 0 0 1rem darken($c-shadow-main, 30%);
        font-size: 1.5rem;
      }
    }
  }
}

.group {
  &__list {
    position: sticky;
    top: 0;
    display: grid;
    grid-template: repeat(1, $element-width / 1.5) / repeat(18, $element-width);
    grid-gap: $grid-gap;
    justify-content: center;
    width: 100%;
    min-width: $table-min-width;
    height: $element-width / 1.5;
    margin: 0 auto;
    font-size: 1rem;
    z-index: 10;
    &.--is-fixed {
      z-index: 20;
      .group-1 {
        &::before {
          display: none;
        }
        &::after {
          @media screen and (max-width: $table-min-width + $element-width * 2 + $grid-gap * 2) {
            transform: translateX(-25%) rotate(0);
          }
        }
      }
    }
  }
  &__item {
    width: $element-width;
    justify-content: center;
    align-items: center;
    border-right: 1px solid $c-main;
    span:nth-of-type(2) {
      flex-basis: 100%;
      text-align: center;
      font-size: 0.75rem;
    }
    &.group-1 {
      border-left: 1px solid $c-main;
      transition: all 0.2s ease;
      &::after {
        content: "Group";
        position: absolute;
        top: 50%;
        font-size: 0.75rem;
        left: -$element-width / 2 - $grid-gap;
        transform: translateY(-50%);
        cursor: auto;
        transition: all 0.2s ease;
        @media screen and (max-width: $table-min-width + $element-width * 2 + $grid-gap * 2) {
          top: 1.25rem;
          left: -$element-width / 2 - $grid-gap + 5;
          transform: translateY(-50%) rotate(45deg);
        }
      }
      &::before {
        transition: all 0.2s ease;
        @media screen and (max-width: $table-min-width + $element-width * 2 + $grid-gap * 2) {
          content: "";
          position: absolute;
          width: 50px;
          height: 1px;
          background-color: $c-main;
          transform: rotate(45deg);
          left: -$element-width / 2 - 20px;
        }
      }
    }
    &.group-15,
    &.group-16,
    &.group-17 {
      span:nth-of-type(1) {
        margin-top: 0.75rem;
      }
    }
  }
}

.period {
  &__list {
    position: absolute;
    display: grid;
    grid-template: repeat(8, $element-width) / repeat(1, $element-width / 1.5);
    grid-gap: $grid-gap;
    width: 100%;
    min-width: $element-width / 1.5;
    max-width: $element-width / 1.5;
    padding-top: 0.4rem;
    font-size: 1rem;
    &.--is-fixed {
      z-index: 10;
      .period-1 {
        &::before {
          content: "";
          position: absolute;
          background: lighten($bg-main, 2.5%);
          width: 100%;
          height: 75%;
          box-shadow: 0 0 0.5rem $bg-main;
          transform: translate(0, -125%);
        }
        &::after {
          transform: translateX(25%) rotate(0);
        }
      }
    }
  }
  &__item {
    width: $element-width / 1.5;
    justify-content: center;
    align-items: center;
    border-bottom: 1px solid $c-main;
    &.period-1 {
      border-top: 1px solid $c-main;
      &::before {
        @media screen and (min-width: $table-min-width + $element-width * 4 + $grid-gap * 2) {
          content: "";
          position: absolute;
          background: lighten($bg-main, 2.5%);
          width: 100%;
          height: 75%;
          box-shadow: 0 0 0.5rem $bg-main;
          transform: translate(0, -125%);
        }
      }
      &::after {
        content: "Period";
        position: absolute;
        font-size: 0.75rem;
        top: -0.5rem;
        transform: translateY(-50%);
        cursor: auto;
        transition: all 0.2s ease;
        @media screen and (max-width: $table-min-width + $element-width * 2 + $grid-gap * 2) {
          top: -1.25rem;
          left: -3px;
          transform: translateY(-50%) rotate(45deg);
        }
      }
    }
  }
}

.dynamic-periodic-table {
  display: grid;
  position: absolute;
  top: $element-width / 1.5;
  grid-gap: $grid-gap;
  grid-template: repeat(10, $element-width) / repeat(18, $element-width); // Shorthand that represents <grid-template-rows> / <grid-template-columns>
  align-self: center;
  justify-self: center;
  justify-content: center;
  width: 100%;
  min-width: $table-min-width;
  margin-top: 0.4rem;
  @media screen and (max-width: $table-min-width + $element-width * 2 + $grid-gap * 1.5) {
    justify-content: normal;
    margin-left: $element-width - ($grid-gap * 3) - 2;
  }
}

.key,
.element {
  border: 2px solid;
  font-family: "Montserrat", sans-serif;
  &__abbr,
  &__name {
    flex-basis: 100%;
    text-align: center;
  }
  &__name {
    text-align: center;
    word-break: break-word;
  }
  &__abbr {
    font-size: 1rem;
  }
  &__atomic-number {
    position: absolute;
    top: 0.2rem;
    left: 0.2rem;
    font-size: 0.65rem;
  }
}

.key {
  position: relative;
  justify-content: center;
  align-items: center;
  grid-area: 1 / 4 / 3 / 5;
  align-self: center;
  justify-self: center;
  width: $element-width * 1.75;
  height: $element-width * 1.75;
  border-color: $c-main;
  font-size: 1rem;
  &__abbr {
    font-size: 1.5rem;
    margin-top: 0.5rem;
  }
  &::after {
    content: "Key:";
    position: absolute;
    top: -1.15rem;
    left: -0.2rem;
    font-family: "Josefin Sans", "Roboto", sans-serif;
  }
}

.legend {
  position: relative;
  align-self: center;
  justify-self: center;
  justify-content: space-between;
  align-items: center;
  grid-area: 1 / 7 / 3 / 11;
  width: ($element-width * 5.75) + ($element-width * 1.75 + $grid-gap * 1.75);
  height: $element-width * 1.75;
  &__element-type {
    width: $element-width * 5.75;
    justify-content: space-between;
    height: 100%;
    &-box {
      cursor: default;
    }
    &__metals,
    &__nonmetals {
      position: relative;
      align-self: flex-end;
      justify-content: space-between;
      height: 85%;
      &__alkali-metal,
      &__alkali-earth-metal,
      &__transition-metal,
      &__post-transition-metal {
        justify-content: center;
        width: $element-width / 2;
        height: 100%;
        text-align: center;
        margin-right: $grid-gap;
        border: 2px solid;
        transition: all 0.2s ease;
        &:hover {
          transform: scale($scale);
        }
        span {
          float: left; // Emulates an auto width
          font-size: 0.85rem;
          width: 100px;
        }
      }
      &__lanthanoid-actinoid {
        align-content: space-between;
        justify-content: center;
        width: $element-width * 1.5;
        margin-right: $grid-gap;
        .lanthanoid,
        .actinoid {
          justify-content: center;
          align-items: center;
          width: 100%;
          height: 100% / 2 - 2;
          border: 2px solid;
          transition: all 0.2s ease;
          span {
            font-size: 0.85rem;
          }
          &:hover {
            transform: scale($scale);
          }
        }
        .lanthanoid {
          border-color: $c-element-lanthanoids;
          color: $c-element-lanthanoids;
        }
        .actinoid {
          border-color: $c-element-actinoids;
          color: $c-element-actinoids;
        }
      }
      &__alkali-metal {
        border-color: $c-element-alkali-metals;
        color: $c-element-alkali-metals;
        span {
          transform: rotate(90deg) translate(0, 280%);
        }
      }
      &__alkali-earth-metal {
        border-color: $c-element-alkali-earth-metals;
        color: $c-element-alkali-earth-metals;
        span {
          transform: rotate(90deg) translate(0, 140%);
        }
      }
      &__transition-metal {
        border-color: $c-element-transition-metals;
        color: $c-element-transition-metals;
        span {
          transform: rotate(90deg) translate(0, 138%);
        }
      }
      &__post-transition-metal {
        margin-right: 0;
        border-color: $c-element-post-transition-metals;
        color: $c-element-post-transition-metals;
        span {
          transform: rotate(90deg) translate(0, 138%);
        }
      }
      &::after {
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        text-align: center;
        margin-top: -3px;
        border-right: 2px solid $c-main;
        border-left: 2px solid $c-main;
        transform: translateY(-100%);
      }
    }
    &__metals {
      width: $element-width * 3.5;
      &::after {
        content: "Metals";
      }
    }
    &__nonmetals {
      width: $element-width;
      &__other-nonmetal,
      &__noble-gas {
        width: $element-width / 2 - $grid-gap / 2;
        text-align: center;
        transition: all 0.2s ease;
        span {
          transform: rotate(90deg) translate(35%, 138%);
        }
        &:hover {
          transform: scale($scale);
        }
      }
      &__other-nonmetal {
        margin-right: $grid-gap;
        border: 2px solid $c-element-other-nonmetals;
        color: $c-element-other-nonmetals;
      }
      &__noble-gas {
        border: 2px solid $c-element-noble-gas;
        color: $c-element-noble-gas;
        span {
          transform: rotate(90deg) translate(45%, 280%);
        }
      }
      span {
        float: left;
        font-size: 0.85rem;
        width: 100px;
      }
      &::after {
        content: "Non-metals";
      }
    }
    &__metalloid {
      height: 100%;
      width: $element-width / 2;
      color: $c-element-metalloids;
      border: 2px solid $c-element-metalloids;
      transition: all 0.2s ease;
      span {
        float: left;
        font-size: 0.85rem;
        width: 100px;
        transform: rotate(90deg) translate(70%, 265%);
      }
      &:hover {
        transform: scale($scale);
      }
    }
    &__unknown {
      width: $element-width / 2;
      height: 100%;
      border: 2px solid $c-element-unknown;
      color: $c-element-unknown;
      transition: all 0.2s ease;
      span {
        float: left;
        font-size: 0.85rem;
        width: 100px;
        transform: rotate(90deg) translate(0, 55%);
      }
      &:hover {
        transform: scale($scale);
      }
    }
  }
  &__element-state {
    justify-content: space-between;
    align-content: space-between;
    width: $element-width * 1.75 + $grid-gap / 2;
    height: 100%;
    &__gas,
    &__liquid,
    &__solid,
    &__unknown {
      justify-content: center;
      align-items: center;
      width: ($element-width * 1.75 + $grid-gap) / 2 - $grid-gap;
      height: ($element-width * 1.75 + $grid-gap) / 2 - $grid-gap;
      border: 2px $c-main;
      transition: all 0.2s ease;
      span {
        flex-basis: 100%;
        text-align: center;
        font-size: 0.85rem;
      }
      &:hover {
        transform: scale($scale);
      }
    }
    &__gas {
      border-style: dashed;
    }
    &__liquid {
      border-style: solid;
    }
    &__solid {
      border: double;
    }
    &__unknown {
      border-style: dotted;
    }
  }
}

.temperature {
  align-items: center;
  justify-content: space-between;
  grid-area: 3 / 3 / 3 / 13;
  margin-left: $element-width / 1.5;
  &__inputs {
    align-items: center;
    &__slider {
      position: relative;
      width: $element-width * 5.75 - $grid-gap;
      height: $grid-gap / 1.5;
      border-radius: $grid-gap;
      background-color: $c-main;
      padding: 0;
      margin: 0 $grid-gap * 2 0 0;
      appearance: none;
      outline: none;
      &::after {
        content: "Drag and drop to modify temperature and element's state";
        position: absolute;
        top: -1.5rem;
        left: 0;
        right: 0;
        text-align: center;
        font-family: "Josefin Sans", "Roboto", sans-serif;
        color: $c-main;
      }
      &::-webkit-slider-thumb {
        width: $grid-gap * 4;
        height: $grid-gap * 4;
        appearance: none;
        border-radius: 50%;
        background-color: lighten($bg-main, 30%);
        cursor: pointer;
        transition: all 0.2s ease-in-out;
        &::after {
          background-color: lighten($bg-main, 30%);
        }
        &:hover {
          background-color: lighten($bg-main, 50%);
        }
        &:active::-webkit-slider-thumb {
          background-color: lighten($bg-main, 40%);
        }
      }
      &::-moz-range-thumb {
        width: $grid-gap * 3.5;
        height: $grid-gap * 3.5;
        appearance: none;
        border-radius: 50%;
        background-color: lighten($bg-main, 30%);
        cursor: pointer;
        transition: all 0.2s ease-in-out;
        &:hover {
          background-color: lighten($bg-main, 50%);
        }
        &::-moz-range-thumb {
          background-color: lighten($bg-main, 40%);
        }
      }
    }
    ::-moz-range-track {
      background: $c-main;
      border: 0;
    }
    input::-moz-focus-inner,
    input::-moz-focus-outer {
      border: 0;
    }
    &__result {
      position: relative;
      align-items: center;
      justify-content: center;
      width: $element-width - $grid-gap;
      height: $element-width / 2;
      color: $c-main;
      border: 2px solid lighten($bg-main, 30%);
      &::after {
        content: "";
        position: absolute;
        bottom: $grid-gap / 5;
        left: 0;
        border-top: $grid-gap solid transparent;
        border-right: $grid-gap * 1.5 solid lighten($bg-main, 30%);
        border-bottom: $grid-gap solid transparent;
        transform: translate(-100%, -100%);
      }
    }
  }
  &__unit-conversion {
    align-content: space-evenly;
    text-align: center;
    width: $element-width * 1.5;
    height: 100%;
    p {
      flex-basis: 100%;
      opactity: 0.5;
    }
  }
  .reset__temperature {
    opacity: 0;
    visibility: hidden;
    justify-content: center;
    align-content: center;
    position: relative;
    width: $element-width * 1.5;
    height: $element-width / 1.5;
    overflow: hidden;
    background: transparent;
    margin-right: 1.85rem;
    font-family: "Josefin Sans", "Roboto", sans-serif;
    color: $c-main;
    border: 2px solid lighten($bg-main, 30%);
    background: none;
    border-radius: 2px;
    cursor: pointer;
    outline: none;
    z-index: 0;
    transition: all 0.3s ease;
    span {
      position: relative;
      z-index: 100;
    }
    &.--is-visible {
      opacity: 1;
      visibility: visible;
    }
    &::before,
    &::after {
      content: "";
      position: absolute;
      top: 50%;
      width: $grid-gap * 3;
      height: $grid-gap * 3;
      background-color: lighten($bg-main, 30%);
      border-radius: 50%;
    }
    &::before {
      left: -1.25rem;
      transform: translate(-50%, -50%);
    }
    &::after {
      right: -1.25rem;
      transform: translate(50%, -50%);
    }
    &:hover {
      animation: focus 0.001s 0.8s forwards;
      &::before {
        animation: criss-cross-left 1s both alternate,
          lighten-background 0.001s 0.8s forwards;
      }
      &::after {
        animation: criss-cross-right 1s both alternate,
          lighten-background 0.001s 0.8s forwards;
      }
    }
    &:active {
      transform: scale(0.95);
    }
  }
}

.element {
  position: relative;
  width: $element-width;
  height: $element-width;
  justify-content: center;
  align-items: center;
  border: 2px solid;
  cursor: pointer;
  font-size: 0.75rem;
  transition: all 0.2s ease;
  &[data-element-type="other-nonmetal"] {
    color: $c-element-other-nonmetals;
    border-color: $c-element-other-nonmetals;
  }
  &[data-element-type="alkali-metal"] {
    color: $c-element-alkali-metals;
    border-color: $c-element-alkali-metals;
  }
  &[data-element-type="alkali-earth-metal"] {
    color: $c-element-alkali-earth-metals;
    border-color: $c-element-alkali-earth-metals;
  }
  &[data-element-type="transition-metal"] {
    color: $c-element-transition-metals;
    border-color: $c-element-transition-metals;
  }
  &[data-element-type="Lanthanoid"] {
    color: $c-element-lanthanoids;
    border-color: $c-element-lanthanoids;
  }
  &[data-element-type="Actinoid"] {
    color: $c-element-actinoids;
    border-color: $c-element-actinoids;
  }
  &[data-element-type="post-transition-metal"] {
    color: $c-element-post-transition-metals;
    border-color: $c-element-post-transition-metals;
  }
  &[data-element-type="metalloid"] {
    color: $c-element-metalloids;
    border-color: $c-element-metalloids;
  }
  &[data-element-type="noble-gas"] {
    color: $c-element-noble-gas;
    border-color: $c-element-noble-gas;
  }
  &[data-element-type="unknown"] {
    color: $c-element-unknown;
    border-color: $c-element-unknown;
  }
  &[data-element-state="gas"] {
    border-style: dashed;
  }
  &[data-element-state="liquid"] {
    border-style: solid;
  }
  &[data-element-state="solid"] {
    border: double;
  }
  &[data-element-state="unknown"] {
    border-style: dotted;
  }
  &[data-element-name="Hydrogen"] {
    grid-area: 1 / 1;
    margin-top: 1px;
  }
  &[data-element-name="Lithium"] {
    grid-area: 2 / 1;
  }
  &[data-element-name="Sodium"] {
    grid-area: 3 / 1;
  }
  &[data-element-name="Potassium"] {
    grid-area: 4 / 1;
  }
  &[data-element-name="Rubidium"] {
    grid-area: 5 / 1;
  }
  &[data-element-name="Caesium"] {
    grid-area: 6 / 1;
  }
  &[data-element-name="Francium"] {
    grid-area: 7 / 1;
  }
  &[data-element-name="Beryllium"] {
    grid-area: 2 / 2;
  }
  &[data-element-name="Magnesium"] {
    grid-area: 3 / 2;
  }
  &[data-element-name="Calcium"] {
    grid-area: 4 / 2;
  }
  &[data-element-name="Stronium"] {
    grid-area: 5 / 2;
  }
  &[data-element-name="Barium"] {
    grid-area: 6 / 2;
  }
  &[data-element-name="Radium"] {
    grid-area: 7 / 2;
  }
  &[data-element-name="Scandium"] {
    grid-area: 4 / 3;
  }
  &[data-element-name="Yttrium"] {
    grid-area: 5 / 3;
  }
  &[data-element-name="Lanthanoids"] {
    grid-area: 6 / 3;
  }
  &[data-element-name="Actinoids"] {
    grid-area: 7 / 3;
  }
  &[data-element-name="Titanium"] {
    grid-area: 4 / 4;
  }
  &[data-element-name="Zirconium"] {
    grid-area: 5 / 4;
  }
  &[data-element-name="Hafnium"] {
    grid-area: 6 / 4;
  }
  &[data-element-name="Rutherfordium"] {
    grid-area: 7 / 4;
  }
  &[data-element-name="Vanadium"] {
    grid-area: 4 / 5;
  }
  &[data-element-name="Niobium"] {
    grid-area: 5 / 5;
  }
  &[data-element-name="Tantalum"] {
    grid-area: 6 / 5;
  }
  &[data-element-name="Dubnium"] {
    grid-area: 7 / 5;
  }
  &[data-element-name="Chromium"] {
    grid-area: 4 / 6;
  }
  &[data-element-name="Molybdenum"] {
    grid-area: 5 / 6;
  }
  &[data-element-name="Tungsten"] {
    grid-area: 6 / 6;
  }
  &[data-element-name="Seaborgium"] {
    grid-area: 7 / 6;
  }
  &[data-element-name="Manganese"] {
    grid-area: 4 / 7;
  }
  &[data-element-name="Technetium"] {
    grid-area: 5 / 7;
  }
  &[data-element-name="Rhenium"] {
    grid-area: 6 / 7;
  }
  &[data-element-name="Bohrium"] {
    grid-area: 7 / 7;
  }
  &[data-element-name="Iron"] {
    grid-area: 4 / 8;
  }
  &[data-element-name="Ruthenium"] {
    grid-area: 5 / 8;
  }
  &[data-element-name="Osmium"] {
    grid-area: 6 / 8;
  }
  &[data-element-name="Hassium"] {
    grid-area: 7 / 8;
  }
  &[data-element-name="Cobalt"] {
    grid-area: 4 / 9;
  }
  &[data-element-name="Rhodium"] {
    grid-area: 5 / 9;
  }
  &[data-element-name="Iridium"] {
    grid-area: 6 / 9;
  }
  &[data-element-name="Meitnerium"] {
    grid-area: 7 / 9;
  }
  &[data-element-name="Nickel"] {
    grid-area: 4 / 10;
  }
  &[data-element-name="Palladium"] {
    grid-area: 5 / 10;
  }
  &[data-element-name="Platinum"] {
    grid-area: 6 / 10;
  }
  &[data-element-name="Darmstadtium"] {
    grid-area: 7 / 10;
  }
  &[data-element-name="Copper"] {
    grid-area: 4 / 11;
  }
  &[data-element-name="Silver"] {
    grid-area: 5 / 11;
  }
  &[data-element-name="Gold"] {
    grid-area: 6 / 11;
  }
  &[data-element-name="Roentgenium"] {
    grid-area: 7 / 11;
  }
  &[data-element-name="Zinc"] {
    grid-area: 4 / 12;
  }
  &[data-element-name="Cadmium"] {
    grid-area: 5 / 12;
  }
  &[data-element-name="Mercury"] {
    grid-area: 6 / 12;
  }
  &[data-element-name="Copernicium"] {
    grid-area: 7 / 12;
  }
  &[data-element-name="Boron"] {
    grid-area: 2 / 13;
  }
  &[data-element-name="Aluminium"] {
    grid-area: 3 / 13;
  }
  &[data-element-name="Galium"] {
    grid-area: 4 / 13;
  }
  &[data-element-name="Indium"] {
    grid-area: 5 / 13;
  }
  &[data-element-name="Thalium"] {
    grid-area: 6 / 13;
  }
  &[data-element-name="Nihonium"] {
    grid-area: 7 / 13;
  }
  &[data-element-name="Carbon"] {
    grid-area: 2 / 14;
  }
  &[data-element-name="Silicon"] {
    grid-area: 3 / 14;
  }
  &[data-element-name="Germanium"] {
    grid-area: 4 / 14;
  }
  &[data-element-name="Tin"] {
    grid-area: 5 / 14;
  }
  &[data-element-name="Lead"] {
    grid-area: 6 / 14;
  }
  &[data-element-name="Flerovium"] {
    grid-area: 7 / 14;
  }
  &[data-element-name="Nitrogen"] {
    grid-area: 2 / 15;
  }
  &[data-element-name="Phosphorus"] {
    grid-area: 3 / 15;
  }
  &[data-element-name="Arsenic"] {
    grid-area: 4 / 15;
  }
  &[data-element-name="Antimony"] {
    grid-area: 5 / 15;
  }
  &[data-element-name="Bismuth"] {
    grid-area: 6 / 15;
  }
  &[data-element-name="Moscovium"] {
    grid-area: 7 / 15;
  }
  &[data-element-name="Oxygen"] {
    grid-area: 2 / 16;
  }
  &[data-element-name="Sulfur"] {
    grid-area: 3 / 16;
  }
  &[data-element-name="Selenium"] {
    grid-area: 4 / 16;
  }
  &[data-element-name="Tellurium"] {
    grid-area: 5 / 16;
  }
  &[data-element-name="Polonium"] {
    grid-area: 6 / 16;
  }
  &[data-element-name="Livemorium"] {
    grid-area: 7 / 16;
  }
  &[data-element-name="Fluorine"] {
    grid-area: 2 / 17;
  }
  &[data-element-name="Chlorine"] {
    grid-area: 3 / 17;
  }
  &[data-element-name="Bromine"] {
    grid-area: 4 / 17;
  }
  &[data-element-name="Iodine"] {
    grid-area: 5 / 17;
  }
  &[data-element-name="Astatine"] {
    grid-area: 6 / 17;
  }
  &[data-element-name="Tennessine"] {
    grid-area: 7 / 17;
  }
  &[data-element-name="Helium"] {
    grid-area: 1 / 18;
  }
  &[data-element-name="Neon"] {
    grid-area: 2 / 18;
  }
  &[data-element-name="Argon"] {
    grid-area: 3 / 18;
  }
  &[data-element-name="Krypton"] {
    grid-area: 4 / 18;
  }
  &[data-element-name="Xenon"] {
    grid-area: 5 / 18;
  }
  &[data-element-name="Radon"] {
    grid-area: 6 / 18;
  }
  &[data-element-name="Oganesson"] {
    grid-area: 7 / 18;
  }
  &[data-element-name="Lanthanum"] {
    grid-area: 9 / 3;
  }
  &[data-element-name="Cerium"] {
    grid-area: 9 / 4;
  }
  &[data-element-name="Praseodymium"] {
    grid-area: 9 / 5;
  }
  &[data-element-name="Neodymium"] {
    grid-area: 9 / 6;
  }
  &[data-element-name="Promethium"] {
    grid-area: 9 / 7;
  }
  &[data-element-name="Samarium"] {
    grid-area: 9 / 8;
  }
  &[data-element-name="Europium"] {
    grid-area: 9 / 9;
  }
  &[data-element-name="Gadolinium"] {
    grid-area: 9 / 10;
  }
  &[data-element-name="Terbium"] {
    grid-area: 9 / 11;
  }
  &[data-element-name="Dysprosium"] {
    grid-area: 9 / 12;
  }
  &[data-element-name="Holmium"] {
    grid-area: 9 / 13;
  }
  &[data-element-name="Erbium"] {
    grid-area: 9 / 14;
  }
  &[data-element-name="Thulium"] {
    grid-area: 9 / 15;
  }
  &[data-element-name="Ytterbium"] {
    grid-area: 9 / 16;
  }
  &[data-element-name="Lutetium"] {
    grid-area: 9 / 17;
  }
  &[data-element-name="Actinium"] {
    grid-area: 10 / 3;
  }
  &[data-element-name="Thorium"] {
    grid-area: 10 / 4;
  }
  &[data-element-name="Protactinium"] {
    grid-area: 10 / 5;
  }
  &[data-element-name="Uranium"] {
    grid-area: 10 / 6;
  }
  &[data-element-name="Neptunium"] {
    grid-area: 10 / 7;
  }
  &[data-element-name="Plutonium"] {
    grid-area: 10 / 8;
  }
  &[data-element-name="Americium"] {
    grid-area: 10 / 9;
  }
  &[data-element-name="Curium"] {
    grid-area: 10 / 10;
  }
  &[data-element-name="Berkelium"] {
    grid-area: 10 / 11;
  }
  &[data-element-name="Californium"] {
    grid-area: 10 / 12;
  }
  &[data-element-name="Einsteinium"] {
    grid-area: 10 / 13;
  }
  &[data-element-name="Fermium"] {
    grid-area: 10 / 14;
  }
  &[data-element-name="Mendelevium"] {
    grid-area: 10 / 15;
  }
  &[data-element-name="Nobelium"] {
    grid-area: 10 / 16;
  }
  &[data-element-name="Lawrencium"] {
    grid-area: 10 / 17;
  }
  .tooltip {
    position: absolute;
    padding: 0.25rem;
    text-align: center;
    background-color: darken($bg-main, 5%);
    color: $c-main;
    border-radius: 1px;
    visibility: hidden;
    z-index: 100;
    transition: visibility 0.15s $cubic-bezier;
    &.--is-hidden {
      display: none;
    }
    &.right-tooltip {
      left: 100%;
      margin-left: 0.75rem;
      &::after {
        content: "";
        position: absolute;
        top: 50%;
        right: 100%;
        border-top: 5px solid transparent;
        border-right: 7.5px solid darken($bg-main, 5%);
        border-bottom: 5px solid transparent;
        transform: translateY(-50%);
      }
    }
    &.left-tooltip {
      right: 100%;
      margin-right: 0.75rem;
      &::after {
        content: "";
        position: absolute;
        top: 50%;
        left: 100%;
        border-top: 5px solid transparent;
        border-left: 7.5px solid darken($bg-main, 5%);
        border-bottom: 5px solid transparent;
        transform: translateY(-50%);
      }
    }
    &.top-tooltip {
      top: -0.75rem;
      transform: translateY(-100%);
      &::after {
        content: "";
        position: absolute;
        bottom: -0.9rem;
        left: 50%;
        border-top: 7.5px solid darken($bg-main, 5%);
        border-right: 5px solid transparent;
        border-left: 5px solid transparent;
        transform: translate(-50%, -100%);
      }
    }
    &.bottom-tooltip {
      bottom: -0.75rem;
      transform: translateY(100%);
      &::after {
        content: "";
        position: absolute;
        bottom: 0.75rem;
        left: 50%;
        border-bottom: 7.5px solid darken($bg-main, 5%);
        border-right: 5px solid transparent;
        border-left: 5px solid transparent;
        transform: translate(-50%, -100%);
      }
    }
  }
  &:hover:not([data-element-name="Lanthanoids"]):not([data-element-name="Actinoids"]),
  &.--is-active {
    box-shadow: 0 0 1rem $c-shadow-main;
    transform: scale($scale);
  }
  &.--is-triggered {
    z-index: 10;
  }
  &:hover {
    &[data-element-name="Lanthanoids"],
    &[data-element-name="Actinoids"] {
      transform: scale($scale);
    }
    .tooltip {
      visibility: visible;
    }
  }
}

.modal {
  align-items: center;
  justify-content: center;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  visibility: hidden;
  opacity: 0;
  background-color: darken(rgba($c-shadow-main, 0.975), 30%);
  z-index: 1000;
  will-change: visibility, opacity;
  transition: all 0.5s $cubic-bezier;
  &__dialog {
    position: relative;
    max-width: $modal-width;
    width: 100%;
    max-height: 90%;
    height: 100%;
    padding: 1.2rem;
    border: none;
    background: none;
  }
  &__content {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    padding: 1.5rem;
    opacity: 0;
    border: 3px solid transparent;
    transition: all 0.25s $cubic-bezier;
    &.--is-visible {
      opacity: 1;
      border: 3px solid transparent;
      color: $c-main;
      &::before,
      &::after {
        transform: scale(1);
      }
    }
    .atom {
      position: absolute;
      top: $element-width + $grid-gap * 2;
      left: 0;
      right: 0;
      animation: up-and-down 7s ease infinite;
      &__core {
        position: absolute;
        top: 50%;
        left: 50%;
        width: 1.5rem;
        height: 1.5rem;
        border-radius: 50%;
        background-color: darken($c-shadow-main, 5%);
        z-index: 0;
      }
      &::before,
      &::after {
        content: "";
        position: absolute;
        top: 50%;
        left: 50%;
        margin: -($element-width - $grid-gap) 0 - ($element-width - $grid-gap) 0;
        width: $element-width * 2 + $grid-gap * 2;
        height: $element-width * 2 + $grid-gap * 2;
        border-radius: 50%;
        border: 4px solid darken($c-shadow-main, 5%);
      }
      &::before {
        z-index: 1;
        animation: clockwise-rotation-2 2s linear infinite;
      }
      &::after {
        z-index: 2;
        animation: clockwise-rotation-1 2s linear infinite;
      }
    }
    &::before,
    &::after {
      content: "";
      position: absolute;
      top: 0;
      left: 0;
      width: 100%;
      height: 100%;
      z-index: 3;
      transform: scale(0);
      transition: all 0.7s $cubic-bezier;
    }
    &::before {
      border-bottom: 3px solid darken($c-shadow-main, 5%);
      border-left: 3px solid darken($c-shadow-main, 5%);
      transform-origin: 0 100%;
    }
    &::after {
      border-top: 3px solid darken($c-shadow-main, 5%);
      border-right: 3px solid darken($c-shadow-main, 5%);
      transform-origin: 100% 0%;
    }
    &__properties {
      display: grid;
      gap: 0 0.5rem;
      grid-template: repeat(auto-fill, minmax($element-width, 1fr)) / repeat(
          9,
          $element-width
        );
      height: 100%;
    }
  }
  &__close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 1.75rem;
    height: 1.75rem;
    padding: 0.15rem;
    background: transparent;
    cursor: pointer;
    z-index: 100;
    transition: all 0.5s $cubic-bezier;
    svg {
      width: 1.75rem;
      height: 1.75rem;
      border: 2px solid darken($c-shadow-main, 5%);
      fill: darken($c-shadow-main, 5%);
      pointer-events: none;
      transition: all 0.5s $cubic-bezier;
    }
    &:hover {
      svg {
        background: darken($c-shadow-main, 5%);
        fill: darken($c-shadow-main, 30%);
      }
    }
  }
  &.--modal__background {
    background: $c-shadow-main;
  }
  &.--is-visible {
    visibility: visible;
    opacity: 1;
  }
}

.modal__content__properties {
  .content {
    text-transform: math-auto;
  }
  .element-property {
    text-align: center;
    gap: 0.25rem;
    .title {
      border-bottom: 1px solid darken($c-shadow-main, 5%);
      margin: 0 1rem;
    }
  }
  .element-name {
    grid-row: 3;
    grid-column: 1/3;
  }

  .element-symbol {
    grid-row: 3;
    grid-column: 3/5;
  }

  .element-atomic-number {
    grid-row: 3;
    grid-column: 5/7;
  }

  .element-atomic-weight {
    grid-row: 3;
    grid-column: 7/10;
  }

  .element-group {
    grid-row: 4;
    grid-column: 1/2;
  }

  .element-period {
    grid-row: 4;
    grid-column: 2/3;
  }

  .element-category {
    grid-row: 4;
    grid-column: 3/8;
  }

  .element-block {
    grid-row: 4;
    grid-column: 8/10;
  }
  .element-electron-configuration {
    grid-row: 5;
    grid-column: 1/4;
  }
  .element-electron-per-shell {
    grid-row: 5;
    grid-column: 4/7;
  }
  .element-phase-at-STP {
    grid-row: 5;
    grid-column: 7/10;
  }
  .element-melting-point {
    grid-row: 6;
    grid-column: 1/3;
  }
  .element-boiling-point {
    grid-row: 6;
    grid-column: 3/6;
  }
  .element-oxidation-states {
    grid-row: 6;
    grid-column: 6/10;
  }
  .element-electronegativity {
    grid-row: 7;
    grid-column: 1/3;
  }
  .element-ionization-energy {
    grid-row: 7;
    grid-column: 3/6;
  }
  .element-covalent-radius {
    grid-row: 7;
    grid-column: 6/10;
  }
  .element-van-der-waals-radius {
    grid-row: 8;
    grid-column: 1/5;
  }
  .element-crystal-structure {
    grid-row: 8;
    grid-column: 5/10;
  }
  .element-thermal-conductivity {
    grid-row: 9;
    grid-column: 1/4;
  }
  .element-magnetic-order {
    grid-row: 9;
    grid-column: 4/7;
  }
  .element-magnetic-susceptibility {
    grid-row: 9;
    grid-column: 7/10;
  }
  .element-miscellaneous {
    grid-row: 10;
    grid-column: 1/11;
  }
}

// Animations
@keyframes criss-cross-left {
  0% {
    left: -1.5rem;
  }
  50% {
    left: 50%;
    width: $grid-gap * 3;
    height: $grid-gap * 3;
  }
  100% {
    left: 50%;
    width: 150%;
    height: 150%;
  }
}

@keyframes criss-cross-right {
  0% {
    right: -1.5rem;
  }
  50% {
    right: 50%;
    width: $grid-gap * 3;
    height: $grid-gap * 3;
  }
  100% {
    right: 50%;
    width: 150%;
    height: 150%;
  }
}

@keyframes focus {
  to {
    border: 2px solid lighten($bg-main, 10%);
    color: lighten($bg-main, 10%);
    font-weight: 600;
    box-shadow: 0 0 1rem $c-shadow-main;
  }
}

@keyframes lighten-background {
  to {
    background-color: lighten($bg-main, 30%);
  }
}

@keyframes clockwise-rotation-1 {
  from {
    transform: perspective(1000px) rotate3d(1, 1, 1, 0deg);
  }
  to {
    transform: perspective(1000px) rotate3d(1, 1, 1, 360deg);
  }
}

@keyframes clockwise-rotation-2 {
  from {
    transform: perspective(1000px) rotate3d(1, -1, 1, 0deg);
  }
  to {
    transform: perspective(1000px) rotate3d(1, -1, 1, 360deg);
  }
}

@keyframes up-and-down {
  0% {
    margin-top: -1rem;
  }
  50% {
    margin-top: 1rem;
  }
  100% {
    margin-top: -1rem;
  }
}

              
            
!

JS

              
                console.clear();

const DELAY = 5,
  STP = 273,
  ELEMENT_MODAL_DATA = {
    Hydrogen: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Hydrogen</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>H</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>1</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>1.008 (conventional)</span>",
      group: "<span class='title'>Group:</span> <span class='content'>1</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>1</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Reactive non-metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>1s<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>13.99 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>20.271 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>-1, +1 (an amphoteric oxide)</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.20</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1312.0 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>31±5 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>120 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.1805 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−3.98·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered in 1766 by Henry Cavendish (named by Antoine Lavoisier in 1783)</span>"
    },
    Helium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Helium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>He</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>2</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>4.0026</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>1</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Noble gas</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>1s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>0.95 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4.22 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>0</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>—</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 2372.3 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>28 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>140 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.1513 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>—</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered in 1868 by Pierre Janssen (independently by Norman Lockyer)</span>"
    },
    Lithium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Lithium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Li</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>3</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>6.94</span>",
      group: "<span class='title'>Group:</span> <span class='content'>1</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>2</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkali metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[He] 2s<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>453.65 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1603 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.98</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 520.2 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>128 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>182 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>84.8 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+13.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered in 1817 by Johan August Arfwedson</span>"
    },
    Beryllium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Beryllium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Be</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>4</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>9.0122</span>",
      group: "<span class='title'>Group:</span> <span class='content'>2</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>2</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkaline earth metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[He] 2s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1560.15 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2742 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.57</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 899.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>96 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>153 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>190 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+4.9·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered in 1798 by Louis Nicolas Vauquelin</span>"
    },
    Boron: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Boron</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>B</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>5</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>10.81</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>13</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>2</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Metalloid</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[He] 2s<sup>2</sup> 2p<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 3</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2349 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4200 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.04</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 800.6 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>84 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>192 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>rhombohedral</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>27.4 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−5.2·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered in ancient times, isolated in 1808 by Sir Humphry Davy and Joseph Louis Gay-Lussac</span>"
    },
    Carbon: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Carbon</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>C</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>6</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>12.011</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>14</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>2</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Non-metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[He] 2s<sup>2</sup> 2p<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 4</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>sublimation point: 3915 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>sublimation</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+4, +3, +2, +1, −1, −2, −3, −4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.55</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1086.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>77 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>170 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>140 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−5.1·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Nitrogen: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Nitrogen</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>N</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>7</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>14.007</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>15</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>2</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Non-metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[He] 2s<sup>2</sup> 2p<sup>3</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 5</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>63.15 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>77.36 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+5, +4, +3, +2, +1, −1, −2, −3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>3.04</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1402.3 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>75 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>155 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.02583 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−3.8·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered in 1772 by Daniel Rutherford</span>"
    },
    Oxygen: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Oxygen</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>O</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>8</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>15.999</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>16</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>2</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Non-metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[He] 2s<sup>2</sup> 2p<sup>4</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 6</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>54.36 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>90.20 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>−2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>3.44</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1313.9 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>73 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>152 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.02583 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−4.3·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Fluorine: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Fluorine</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>F</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>9</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>18.998</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>17</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>2</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Halogen</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[He] 2s<sup>2</sup> 2p<sup>5</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 7</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>53.48 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>85.03 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>−1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>3.98</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1681.0 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>71 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>147 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.02591 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−1.8·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Isolated by Henri Moissan in 1886</span>"
    },
    Neon: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Neon</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ne</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>10</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>20.180</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>2</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Noble gas</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[He] 2s<sup>2</sup> 2p<sup>6</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>24.56 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>27.07 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>0</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>—</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 2080.7 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>69 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>154 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.049 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>—</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Sir William Ramsay and Morris Travers in 1898</span>"
    },
    Sodium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Sodium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Na</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>11</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>22.990</span>",
      group: "<span class='title'>Group:</span> <span class='content'>1</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>3</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkali metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ne] 3s<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>370.87 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1156 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.93</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 495.8 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>154 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>227 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>142 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>6.3·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Magnesium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Magnesium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Mg</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>12</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>24.305</span>",
      group: "<span class='title'>Group:</span> <span class='content'>2</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>3</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkaline earth metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ne] 3s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>923 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1380 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.31</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 737.7 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>141 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>173 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>156 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>3.9·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Isolated by Sir Humphry Davy in 1808</span>"
    },
    Aluminum: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Aluminum</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Al</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>13</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>26.982</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>13</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>3</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ne] 3s<sup>2</sup> 3p<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 3</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>933.47 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2792 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.61</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 577.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>121 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>184 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>237 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>1.5·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Silicon: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Silicon</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Si</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>14</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>28.085</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>14</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>3</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Metalloid</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ne] 3s<sup>2</sup> 3p<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 4</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1687 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3538 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+4, +2, -4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.90</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 786.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>111 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>210 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>diamond cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>149 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>nonmagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>—</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Isolated by Jöns Jacob Berzelius in 1823</span>"
    },
    Phosphorus: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Phosphorus</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>P</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>15</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>30.974</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>15</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>3</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Nonmetal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ne] 3s<sup>2</sup> 3p<sup>3</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 5</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>317.25 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>553.65 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+5, +3, -3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.19</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1011.8 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>107 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>180 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>simple triclinic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.236 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>—</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Hennig Brand in 1669</span>"
    },
    Sulfur: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Sulfur</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>S</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>16</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>32.06</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>16</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>3</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Nonmetal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ne] 3s<sup>2</sup> 3p<sup>4</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 6</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>388.36 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>717.87 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+6, +4, -2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.58</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 999.6 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>102 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>180 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>orthorhombic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.205 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>—</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Chlorine: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Chlorine</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Cl</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>17</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>35.45</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>17</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>3</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Halogen</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ne] 3s<sup>2</sup> 3p<sup>5</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 7</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>171.6 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>239.11 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+7, +5, +3, +1, -1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>3.16</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1251.2 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>99 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>175 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>orthorhombic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.0089 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>antiferromagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−37.2·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Carl Wilhelm Scheele in 1774</span>"
    },
    Argon: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Argon</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ar</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>18</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>39.948</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>3</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Noble gas</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ne] 3s<sup>2</sup> 3p<sup>6</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 8</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>83.8 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>87.3 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>0</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>—</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1520.6 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>71 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>188 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.0177 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>—</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Lord Rayleigh and Sir William Ramsay in 1894</span>"
    },
    Potassium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Potassium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>K</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>19</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>39.098</span>",
      group: "<span class='title'>Group:</span> <span class='content'>1</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkali metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 4s<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 8, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>336.53 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1032 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.82</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 418.8 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>203 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>275 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>102.5 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>5.6·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Sir Humphry Davy in 1807</span>"
    },
    Calcium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Calcium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ca</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>20</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>40.078</span>",
      group: "<span class='title'>Group:</span> <span class='content'>2</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkaline earth metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 4s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1115 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1757 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.00</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 589.8 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>176 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>231 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>201 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>—</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Sir Humphry Davy in 1808</span>"
    },
    Scandium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Scandium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Sc</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>21</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>44.956</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>1</sup> 4s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1814 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3109 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.36</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 633.1 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>170 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>—</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>15.8 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>—</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Lars Fredrik Nilson in 1879</span>"
    },
    Titanium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Titanium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ti</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>22</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>47.867</span>",
      group: "<span class='title'>Group:</span> <span class='content'>4</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>2</sup> 4s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 10, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1941 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3560 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+4, +3, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.54</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 658.8 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>160 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>187 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>22.0 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>—</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by William Gregor in 1791</span>"
    },
    Vanadium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Vanadium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>V</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>23</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>50.942</span>",
      group: "<span class='title'>Group:</span> <span class='content'>5</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>3</sup> 4s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 11, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2183 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3680 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+5, +4, +3, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.63</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 650.9 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>153 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>—</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>30.7 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>antiferromagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>—</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Andrés Manuel del Río in 1801</span>"
    },
    Chromium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Chromium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Cr</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>24</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>51.996</span>",
      group: "<span class='title'>Group:</span> <span class='content'>6</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>5</sup> 4s<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 13, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2180 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2944 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+6, +3, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.66</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 652.9 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>166 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>—</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>93.9 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>antiferromagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>1.1·10−5 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Louis Nicolas Vauquelin in 1797</span>"
    },
    Manganese: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Manganese</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Mn</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>25</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>54.938</span>",
      group: "<span class='title'>Group:</span> <span class='content'>7</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>5</sup> 4s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 13, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1519 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2334 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+7, +4, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.55</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 717.3 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>139 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>—</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>7.8 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>2.1·10−5 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Torbern Olof Bergman in 1774</span>"
    },
    Iron: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Iron</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Fe</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>26</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>55.845</span>",
      group: "<span class='title'>Group:</span> <span class='content'>8</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>6</sup> 4s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 14, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1811 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3134 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.83</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 762.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>132 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>194 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>80.4 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>ferromagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>1.7·10−5 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Cobalt: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Cobalt</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Co</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>27</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>58.933</span>",
      group: "<span class='title'>Group:</span> <span class='content'>9</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>7</sup> 4s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 15, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1768 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3200 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.88</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 760.4 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>126 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>—</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>100 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>ferromagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>2.3·10−5 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Georg Brandt in 1735</span>"
    },
    Nickel: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Nickel</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ni</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>28</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>58.693</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>10</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>8</sup> 4s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 16, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1728 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3186 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.91</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 737.1 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>121 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>—</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>90.9 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>ferromagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>5.7·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Copper: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Copper</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Cu</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>29</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>63.546</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>11</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>9</sup> 4s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1357.8 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2835 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +1 (a mild oxidizing agent)</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 745.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>138 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>140 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>398 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−5.8·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Zinc: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Zinc</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Zn</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>30</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>65.38</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>12</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>10</sup> 4s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>692.68 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1180 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.65</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 906.4 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>131 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>139 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>116 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−1.2·10−5 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Gallium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Gallium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ga</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>31</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>69.723</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>13</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>10</sup> 4s<sup>2</sup> 4p<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 3</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>302.9146 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2477 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.81</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 578.8 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>122 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>187 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>orthorhombic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>29.6 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−5.2·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Lecoq de Boisbaudran in 1875</span>"
    },
    Germanium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Germanium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ge</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>32</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>72.630</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>14</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Metalloid</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>10</sup> 4s<sup>2</sup> 4p<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 4</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1211.4 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3106 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+4, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.01</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 762.0 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>122 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>211 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>diamond cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>60.2 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−1.4·10−5 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Clemens Winkler in 1886</span>"
    },
    Arsenic: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Arsenic</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>As</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>33</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>74.922</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>15</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Metalloid</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>10</sup> 4s<sup>2</sup> 4p<sup>3</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 5</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1090 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>887 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+5, +3, −3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.18</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 947.0 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>119 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>185 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>rhombohedral</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>50.2 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−2.4·10−5 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Selenium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Selenium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Se</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>34</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>78.971</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>16</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Non-metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>10</sup> 4s<sup>2</sup> 4p<sup>4</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 6</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>494 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>958 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+6, +4, −2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.55</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 941.0 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>120 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>190 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.523 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−6.7·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Jöns Jakob Berzelius in 1817</span>"
    },
    Bromine: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Bromine</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Br</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>35</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>79.904</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>17</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Halogen</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>10</sup> 4s<sup>2</sup> 4p<sup>5</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 7</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Liquid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>265.8 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>332.0 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+5, +4, +3, +1, −1, −5</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.96</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1139.9 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>120 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>185 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>orthorhombic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.122 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−1.6·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Antoine Jérôme Balard in 1826</span>"
    },
    Krypton: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Krypton</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Kr</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>36</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>83.798</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>4</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Noble gas</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Ar] 3d<sup>10</sup> 4s<sup>2</sup> 4p<sup>6</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 8</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>115.78 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>119.93 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>3.00</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1350.8 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>110 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>202 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>cubic face-centered</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.00943 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>0</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Sir William Ramsay and Morris Travers in 1898</span>"
    },
    Rubidium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Rubidium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Rb</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>37</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>85.468</span>",
      group: "<span class='title'>Group:</span> <span class='content'>1</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkali metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 8, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>312.45 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>961 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.82</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 403.0 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>211 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>303 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>58.2 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+1.7·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Robert Bunsen and Gustav Kirchhoff in 1861</span>"
    },
    Strontium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Strontium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Sr</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>38</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>87.62</span>",
      group: "<span class='title'>Group:</span> <span class='content'>2</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkaline earth metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1050 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1650 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.95</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 549.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>195 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>249 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>35.3 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+1.2·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Adair Crawford and William Cruickshank in 1790</span>"
    },
    Yttrium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Yttrium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Y</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>39</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>88.906</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>2</sup> 4d<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1799 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3609 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.22</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 600.0 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>180 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>212 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>17.2 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+1.9·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Johan Gadolin in 1794</span>"
    },
    Zirconium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Zirconium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Zr</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>40</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>91.224</span>",
      group: "<span class='title'>Group:</span> <span class='content'>4</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>2</sup> 4d<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 10, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2128 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4682 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.33</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 640.1 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>155 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>22.6 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+3.2·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Martin Heinrich Klaproth in 1789</span>"
    },
    Niobium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Niobium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Nb</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>41</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>92.906</span>",
      group: "<span class='title'>Group:</span> <span class='content'>5</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>1</sup> 4d<sup>4</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 12, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2741 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>5017 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+5, +3, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.6</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 652.1 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>164 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>207 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>53.7 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+3.3·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Named after Niobe, the daughter of Tantalus, in Greek mythology</span>"
    },
    Molybdenum: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Molybdenum</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Mo</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>42</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>95.95</span>",
      group: "<span class='title'>Group:</span> <span class='content'>6</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>1</sup> 4d<sup>5</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 13, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2896 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4912 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+6, +5, +4, +3, +2, +1, -1, -2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.16</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 684.3 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>154 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>209 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>138 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+4.7·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known to the ancient Greeks, but isolated in 1781 by Peter Jacob Hjelm</span>"
    },
    Technetium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Technetium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Tc</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>43</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>98</span>",
      group: "<span class='title'>Group:</span> <span class='content'>7</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>1</sup> 4d<sup>6</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 13, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2430 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4538 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+7, +6, +5, +4, +3, +2, +1, -1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 702 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>147 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>50.6 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>ferromagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+99.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Artificially produced, first isolated by Carlo Perrier and Emilio Segrè in 1937</span>"
    },
    Ruthenium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Ruthenium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ru</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>44</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>101.07</span>",
      group: "<span class='title'>Group:</span> <span class='content'>8</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>1</sup> 4d<sup>7</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 15, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2607 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4423 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +4, +7, +8</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.2</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 710.2 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>146 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>120 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+8.4·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Karl Ernst Claus in 1844</span>"
    },
    Rhodium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Rhodium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Rh</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>45</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>102.91</span>",
      group: "<span class='title'>Group:</span> <span class='content'>9</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>1</sup> 4d<sup>8</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 16, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2237 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3968 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +2, +1, -1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.28</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 719.7 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>142 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>150 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+4.3·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by William Hyde Wollaston in 1803</span>"
    },
    Palladium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Palladium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Pd</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>46</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>106.42</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>10</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>0</sup> 4d<sup>10</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 0</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1828 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3236 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+4, +2, 0</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.2</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 804.4 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>139 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>163 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>71.8 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+5.7·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by William Hyde Wollaston in 1803</span>"
    },
    Silver: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Silver</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ag</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>47</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>107.87</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>11</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>1</sup> 4d<sup>10</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1234 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2435 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.93</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 731 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>145 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>172 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>429 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>-19.5·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Cadmium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Cadmium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Cd</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>48</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>112.41</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>12</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>2</sup> 4d<sup>10</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>594.22 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1040 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.69</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 867.8 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>148 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>158 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>96.6 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>+4.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Karl Samuel Leberecht Hermann and Friedrich Stromeyer in 1817</span>"
    },
    Indium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Indium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>In</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>49</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>114.82</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>13</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>2</sup> 4d<sup>10</sup> 5p<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 3</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>429.75 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2345 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.78</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 558.3 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>142 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>193 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>tetragonal</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>81.8 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−76.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Ferdinand Reich and Hieronymous Theodor Richter in 1863</span>"
    },
    Tin: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Tin</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Sn</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>50</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>118.71</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>14</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>2</sup> 4d<sup>10</sup> 5p<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 4</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>505.08 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2875 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+4, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.96</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 708.6 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>141 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>217 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>tetragonal</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>66.8 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−33.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Antimony: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Antimony</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Sb</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>51</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>121.76</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>15</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Metalloid</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>2</sup> 4d<sup>10</sup> 5p<sup>3</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 5</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>903.78 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1860 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+5, +3, -3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.05</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 834 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>138 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>206 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>rhombohedral</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>24.6 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−61.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Tellurium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Tellurium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Te</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>52</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>127.60</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>16</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Metalloid</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>2</sup> 4d<sup>10</sup> 5p<sup>4</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 6</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>722.66 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1261 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+6, +4, -2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.1</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 869 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>138 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>206 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>2.35 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−19.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Franz-Joseph Müller von Reichenstein in 1782</span>"
    },
    Iodine: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Iodine</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>I</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>53</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>126.90</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>17</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Halogen</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>2</sup> 4d<sup>10</sup> 5p<sup>5</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 7</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>386.85 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>457.4 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+7, +5, +1, -1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.66</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1008.4 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>139 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>198 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>orthorhombic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.449 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−27.4·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Bernard Courtois in 1811</span>"
    },
    Xenon: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Xenon</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Xe</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>54</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>131.29</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>5</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Noble gas</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Kr] 5s<sup>2</sup> 4d<sup>10</sup> 5p<sup>6</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 8</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>161.4 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>165.0 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +4, +6, +8</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.60</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1170.4 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>140 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>216 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>0.00565 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>0.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Sir William Ramsay and Morris Travers in 1898</span>"
    },
    Cesium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Cesium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Cs</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>55</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>132.91</span>",
      group: "<span class='title'>Group:</span> <span class='content'>1</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkali metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 6s<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 8, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>301.59 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>944 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.79</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 375.7 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>244 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>35.9 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>68.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Robert Bunsen and Gustav Kirchhoff in 1860</span>"
    },
    Barium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Barium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ba</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>56</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>137.33</span>",
      group: "<span class='title'>Group:</span> <span class='content'>2</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkaline earth metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1000 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2170 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.89</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 502.9 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>215 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>18.4 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−25.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Carl Wilhelm Scheele in 1772</span>"
    },
    Lanthanum: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Lanthanum</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>La</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>57</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>138.91</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 5d<sup>1</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 18, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1193 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3737 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.10</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 538.1 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>207 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>13.4 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−46.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Carl Gustaf Mosander in 1839</span>"
    },
    Cerium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Cerium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ce</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>58</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>140.12</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>1</sup> 5d<sup>1</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 19, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1068 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3716 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+4, +3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.12</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 534.4 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>204 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>11.3 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−32.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Martin Heinrich Klaproth and Jöns Jakob Berzelius in 1803</span>"
    },
    Praseodymium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Praseodymium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Pr</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>59</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>140.91</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>3</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 21, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1208 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3793 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.13</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 527.0 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>203 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>double hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>12.5 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−16.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Carl Auer von Welsbach in 1885</span>"
    },
    Neodymium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Neodymium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Nd</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>60</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>144.24</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>4</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 22, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1297 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3347 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.14</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 533.1 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>201 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>double hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>16.5 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−19.5·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Carl Auer von Welsbach in 1885</span>"
    },
    Promethium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Promethium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Pm</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>61</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>145</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>5</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 23, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1315 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3273 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.13</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 540 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>none</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>12.9 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−9.8·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Jacob A. Marinsky, Lawrence E. Glendenin, and Charles D. Coryell in 1945</span>"
    },
    Samarium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Samarium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Sm</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>62</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>150.36</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>6</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 24, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1345 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2067 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.17</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 544.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>198 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>rhombohedral</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>13.3 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>antiferromagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−44.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Lecoq de Boisbaudran in 1879</span>"
    },
    Europium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Europium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Eu</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>63</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>151.97</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>7</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 25, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1099 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1802 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.2</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 547.1 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>198 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>13.9 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−27.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Eugène-Anatole Demarçay in 1901</span>"
    },
    Gadolinium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Gadolinium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Gd</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>64</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>157.25</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>7</sup> 5d<sup>1</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 25, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1585 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3546 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.2</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 593.4 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>180 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>10.6 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−40.5·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Jean Charles Galissard de Marignac in 1880</span>"
    },
    Terbium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Terbium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Tb</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>65</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>158.93</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>9</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 27, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1629 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3503 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.2</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 565.8 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>176 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>11.1 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−19.8·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Carl Gustaf Mosander in 1843</span>"
    },
    Dysprosium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Dysprosium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Dy</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>66</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>162.50</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>10</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 28, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1680 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2840 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.22</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 573.0 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>170 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>10.7 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−15.8·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Paul Émile Lecoq de Boisbaudran in 1886</span>"
    },
    Holmium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Holmium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ho</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>67</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>164.93</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>11</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 29, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1734 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2993 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.23</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 581.0 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>176 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>16.2 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−19.3·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Per Teodor Cleve in 1879</span>"
    },
    Erbium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Erbium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Er</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>68</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>167.26</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>12</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 30, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1802 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3141 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.24</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 589.3 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>175 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>14.5 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−19.7·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Carl Gustaf Mosander in 1843</span>"
    },
    Thulium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Thulium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Tm</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>69</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>168.93</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>13</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 31, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1818 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2223 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.25</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 596.7 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>172 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>16.9 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−16.6·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Per Teodor Cleve in 1879</span>"
    },
    Ytterbium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Ytterbium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Yb</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>70</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>173.04</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1097 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1469 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.1</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 603.4 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>None</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>38.5 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−35.1·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Jean Charles Galissard de Marignac in 1878</span>"
    },
    Lutetium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Lutetium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Lu</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>71</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>174.97</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Lanthanide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>1</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1925 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3675 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.27</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 523.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>None</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>16.4 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−8.6·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Carl Auer von Welsbach in 1903</span>"
    },
    Hafnium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Hafnium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Hf</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>72</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>178.49</span>",
      group: "<span class='title'>Group:</span> <span class='content'>4</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>2</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 10, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2506 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4876 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +3, +4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 658.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>155 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>23.0 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−17.1·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Dirk Coster and Georg von Hevesy in 1923</span>"
    },
    Tantalum: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Tantalum</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ta</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>73</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>180.95</span>",
      group: "<span class='title'>Group:</span> <span class='content'>5</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>3</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 11, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>3290 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>5731 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>−1, +1, +3, +4, +5</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.5</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 761 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>138 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>200 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>57.5 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−1.7·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Anders Gustaf Ekeberg in 1802</span>"
    },
    Tungsten: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Tungsten</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>W</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>74</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>183.84</span>",
      group: "<span class='title'>Group:</span> <span class='content'>6</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>4</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 12, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>3695 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>6203 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>−2, -1, +1, +2, +3, +4, +5, +6</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.36</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 770 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>139 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>210 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>170 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−5.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Carl Wilhelm Scheele in 1781</span>"
    },
    Rhenium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Rhenium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Re</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>75</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>186.21</span>",
      group: "<span class='title'>Group:</span> <span class='content'>7</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>5</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 13, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>3459 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>5869 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>−3, -1, +1, +2, +3, +4, +5, +6, +7</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 760 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>137 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>47.9 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>antiferromagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−17.6·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Masataka Ogawa in 1908</span>"
    },
    Osmium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Osmium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Os</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>76</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>190.23</span>",
      group: "<span class='title'>Group:</span> <span class='content'>8</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>6</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 14, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>3306 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>5285 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>−2, -1, +1, +2, +3, +4, +5, +6, +7, +8</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.2</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 840 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>130 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>nan</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>87.6 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−14.6·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Smithson Tennant in 1803</span>"
    },
    Iridium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Iridium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ir</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>77</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>192.22</span>",
      group: "<span class='title'>Group:</span> <span class='content'>9</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>7</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 15, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2719 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4701 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>−3, -1, +1, +2, +3, +4, +5, +6</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.20</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 880 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>135 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>202 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>147 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−5.7·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Smithson Tennant in 1803</span>"
    },
    Platinum: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Platinum</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Pt</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>78</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>195.08</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>10</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>9</sup> 6s<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 17, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2041 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4098 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>2, 4, 5, 6</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.28</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 870 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>136 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>no data</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>71.6 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−3.1·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Used by pre-Columbian Americans</span>"
    },
    Gold: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Gold</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Au</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>79</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>196.97</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>11</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>10</sup> 6s<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1337.33 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3129 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>−1, +1, +2, +3, +5</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.54</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 890 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>144 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>166 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>315 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−5.86·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since prehistoric times</span>"
    },
    Mercury: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Mercury</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Hg</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>80</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>200.59</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>12</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>10</sup> 6s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Liquid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>234.32 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>629.88 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1, +2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.00</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1007.1 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>149 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>155 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>rhombohedral</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>8.30 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−2.8·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Thallium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Thallium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Tl</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>81</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>204.38</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>13</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>10</sup> 6s<sup>2</sup> 6p<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 3</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>577 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1746 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1, +3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.62</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 589.4 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>145 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>196 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>46.1 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−0.20·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by William Crookes in 1861</span>"
    },
    Lead: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Lead</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Pb</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>82</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>207.2</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>14</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>10</sup> 6s<sup>2</sup> 6p<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 4</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>600.61 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2022 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.87</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 715.6 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>146 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>202 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>35.9 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−19.0·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Bismuth: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Bismuth</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Bi</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>83</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>208.98</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>15</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>10</sup> 6s<sup>2</sup> 6p<sup>3</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 5</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>544.55 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1837 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +5</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.02</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 703 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>148 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>207 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>rhombohedral</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>7.97 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−16.2·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Known since ancient times</span>"
    },
    Polonium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Polonium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Po</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>84</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>209</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>16</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Metalloid</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>10</sup> 6s<sup>2</sup> 6p<sup>4</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 6</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>527 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1235 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +4, +6</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.00</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 812.1 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>140 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>197 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>rhombohedral</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>20 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>diamagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>−34.8·10−6 cm<sup>3</sup>/mol</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Marie Curie and Pierre Curie in 1898</span>"
    },
    Astatine: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Astatine</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>At</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>85</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>210</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>17</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Halogen</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>10</sup> 6s<sup>2</sup> 6p<sup>5</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 7</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>575 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>610 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>−1, +1, +3, +5</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.2</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 919 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>150 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>202 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Dale R. Corson, Kenneth Ross MacKenzie, and Emilio Segrè in 1940</span>"
    },
    Radon: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Radon</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Rn</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>86</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>222</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>6</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Noble gas</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Xe] 4f<sup>14</sup> 5d<sup>10</sup> 6s<sup>2</sup> 6p<sup>6</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 8</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Gas</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>202 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>211.5 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>0</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>2.2</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1037 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>150 pm</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>220 pm</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>3.61 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Friedrich Ernst Dorn in 1900</span>"
    },
    Francium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Francium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Fr</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>87</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>223</span>",
      group: "<span class='title'>Group:</span> <span class='content'>1</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkali metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 7s<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 8, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>300 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>950 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.7</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 380 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Marguerite Perey in 1939</span>"
    },
    Radium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Radium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ra</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>88</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>226</span>",
      group: "<span class='title'>Group:</span> <span class='content'>2</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Alkaline earth metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>s-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1413 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>1413 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 509.3 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>18.6 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>nonmagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Marie Curie and Pierre Curie in 1898</span>"
    },
    Actinium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Actinium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ac</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>89</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>227</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 6d<sup>1</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1500 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3503 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.1</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 499 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>12 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Friedrich Oskar Giesel in 1902</span>"
    },
    Thorium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Thorium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Th</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>90</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>232.0377</span>",
      group: "<span class='title'>Group:</span> <span class='content'>4</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 6d<sup>2</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 18, 10, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2115 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>5061 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +3, +4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 587 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>face-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>54.0 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Jöns Jakob Berzelius in 1828</span>"
    },
    Protactinium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Protactinium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Pa</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>91</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>231.03588</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>15</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>2</sup> 6d<sup>1</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 20, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1841 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4300 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+5</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.5</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 568 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>body-centered cubic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>47.9 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by William Crookes in 1913</span>"
    },
    Uranium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Uranium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>U</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>92</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>238.02891</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>16</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>3</sup> 6d<sup>1</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 21, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1405.3 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4404 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +4, +5, +6</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.38</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 597.6 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>orthorhombic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>27.5 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Martin Heinrich Klaproth in 1789</span>"
    },
    Neptunium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Neptunium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Np</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>93</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>237</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>15</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>4</sup> 6d<sup>1</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 22, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>917 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>4273 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +4, +5, +6, +7</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.36</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 604.5 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>orthorhombic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>6.3 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Edwin McMillan and Philip H. Abelson in 1940</span>"
    },
    Plutonium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Plutonium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Pu</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>94</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>244</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>16</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>6</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 24, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>912 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>3505 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +4, +5, +6, +7</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.28</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 584.7 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>monoclinic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>6.74 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, and Albert Ghiorso in 1940</span>"
    },
    Americium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Americium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Am</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>95</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>243</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>15</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>7</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 25, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1449 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>2880 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +3, +4, +5, +6</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 578 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>10 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Glenn T. Seaborg, Ralph A. James, Leon O. Morgan, and Albert Ghiorso in 1944</span>"
    },
    Curium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Curium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Cm</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>96</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>247</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>16</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>7</sup> 6d<sup>1</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 25, 9, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1613 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 581 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>double hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>13.3 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Glenn T. Seaborg, Ralph A. James, and Albert Ghiorso in 1944</span>"
    },
    Berkelium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Berkelium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Bk</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>97</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>247</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>16</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>9</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 27, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1259 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3, +4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 601 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>orthorhombic</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>10.5 W/(m·K)</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>paramagnetic</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Glenn T. Seaborg, Ralph A. James, and Albert Ghiorso in 1949</span>"
    },
    Californium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Californium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Cf</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>98</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>251</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>10</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 28, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1173 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +3, +4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 608 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Albert Ghiorso, Glenn T. Seaborg, Ralph A. James, and Torbjørn Sikkeland in 1950</span>"
    },
    Einsteinium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Einsteinium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Es</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>99</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>252</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>11</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 29, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1133 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 619 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>hexagonal close-packed</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Albert Ghiorso, Glenn T. Seaborg, Ralph A. James, and Gregory R. Choppin in 1952</span>"
    },
    Fermium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Fermium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Fm</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>100</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>257</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>12</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 30, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1800 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 627 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Albert Ghiorso, Glenn T. Seaborg, Ralph A. James, and Stanley G. Thompson in 1952</span>"
    },
    Mendelevium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Mendelevium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Md</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>101</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>258</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>13</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 31, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1100 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 635 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Albert Ghiorso, Glenn T. Seaborg, Ralph A. James, and M. Albert in 1955</span>"
    },
    Nobelium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Nobelium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>No</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>102</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>259</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Actinide</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>f-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 8, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1100 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 642 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Albert Ghiorso, Glenn T. Seaborg, Ralph A. James, and Leon O. Morgan in 1957</span>"
    },
    Lawrencium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Lawrencium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Lr</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>103</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>262</span>",
      group: "<span class='title'>Group:</span> <span class='content'>3</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>1</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 8, 3</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>1900 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 470 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Discovered by Albert Ghiorso, Glenn T. Seaborg, Ralph A. James, and Albert Ghiorso in 1961</span>"
    },
    Rutherfordium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Rutherfordium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Rf</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>104</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>267</span>",
      group: "<span class='title'>Group:</span> <span class='content'>4</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>2</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 10, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>2400 K</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>5800 K</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 580 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>Synthesized by bombarding plutonium-242 with carbon ions in 1969</span>"
    },
    Dubnium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Dubnium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Db</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>105</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>268</span>",
      group: "<span class='title'>Group:</span> <span class='content'>5</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>3</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 11, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+5</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 663 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Joint Institute for Nuclear Research (JINR) in 1968</span>"
    },
    Seaborgium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Seaborgium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Sg</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>106</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>271</span>",
      group: "<span class='title'>Group:</span> <span class='content'>6</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>4</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 12, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+6</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 761 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Joint Institute for Nuclear Research (JINR) in 1974</span>"
    },
    Bohrium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Bohrium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Bh</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>107</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>270</span>",
      group: "<span class='title'>Group:</span> <span class='content'>7</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>5</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 13, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+7</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 740 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Joint Institute for Nuclear Research (JINR) in 1976</span>"
    },
    Hassium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Hassium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Hs</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>108</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>277</span>",
      group: "<span class='title'>Group:</span> <span class='content'>8</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>6</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 14, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+8, +6, +4, +2, 0</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 870 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the German Institute for Heavy Ion Research (Gesellschaft für Schwerionenforschung, GSI) in 1984</span>"
    },
    Meitnerium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Meitnerium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Mt</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>109</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>276</span>",
      group: "<span class='title'>Group:</span> <span class='content'>9</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>7</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 15, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+9, +8, +6, +4, +3, +1, -1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 800 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Gesellschaft für Schwerionenforschung (GSI) in 1982</span>"
    },
    Darmstadtium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Darmstadtium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ds</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>110</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>281</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>10</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>8</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 16, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+8, +6, +4, +2, 0</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.1</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1100 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Gesellschaft für Schwerionenforschung (GSI) in 1994</span>"
    },
    Roentgenium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Roentgenium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Rg</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>111</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>280</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>11</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>9</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 17, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+5, +3, 0</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1100 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Gesellschaft für Schwerionenforschung (GSI) in 1994</span>"
    },
    Copernicium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Copernicium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Cn</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>112</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>285</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>12</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>d-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>10</sup> 7s<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 18, 2</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +4</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 1150 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Gesellschaft für Schwerionenforschung (GSI) in 1996</span>"
    },
    Nihonium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Nihonium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Nh</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>113</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>284</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>13</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>10</sup> 7s<sup>2</sup> 7p<sup>1</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 18, 1</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 700 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the RIKEN collaboration in 2003</span>"
    },
    Flerovium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Flerovium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Fl</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>114</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>289</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>14</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>10</sup> 7s<sup>2</sup> 7p<sup>2</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 18, 4</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+4, +2, 0</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>1.3</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 760 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Joint Institute for Nuclear Research (JINR) and Lawrence Livermore National Laboratory (LLNL) in 1998</span>"
    },
    Moscovium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Moscovium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Mc</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>115</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>290</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>15</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>10</sup> 7s<sup>2</sup> 7p<sup>3</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 18, 5</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1, +3</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 800 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Joint Institute for Nuclear Research (JINR) and Lawrence Livermore National Laboratory (LLNL) in 2003</span>"
    },
    Livermorium: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Livermorium</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Lv</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>116</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>293</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>16</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Post-transition metal</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>10</sup> 7s<sup>2</sup> 7p<sup>4</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 18, 6</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+2, +4, +6</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 870 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Joint Institute for Nuclear Research (JINR) and Lawrence Livermore National Laboratory (LLNL) in 2000</span>"
    },
    Tennessine: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Tennessine</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Ts</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>117</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>294</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>17</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Halogen</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>10</sup> 7s<sup>2</sup> 7p<sup>5</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 18, 7</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1, +3, +5</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 870 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Joint Institute for Nuclear Research (JINR) and Oak Ridge National Laboratory (ORNL) in 2010</span>"
    },
    Oganesson: {
      name:
        "<span class='title'>Element:</span> <span class='content'>Oganesson</span>",
      symbol:
        "<span class='title'>Symbol:</span> <span class='content'>Og</span>",
      "atomic-number":
        "<span class='title'>Atomic number:</span> <span class='content'>118</span>",
      "atomic-weight":
        "<span class='title'>Atomic weight:</span> <span class='content'>294</span>",
      group:
        "<span class='title'>Group:</span> <span class='content'>18</span>",
      period:
        "<span class='title'>Period:</span> <span class='content'>7</span>",
      category:
        "<span class='title'>Category:</span> <span class='content'>Noble gas</span>",
      block:
        "<span class='title'>Block:</span> <span class='content'>p-block</span>",
      "electron-configuration":
        "<span class='title'>Electron configuration:</span> <span class='content'>[Rn] 5f<sup>14</sup> 6d<sup>10</sup> 7s<sup>2</sup> 7p<sup>6</sup></span>",
      "electron-per-shell":
        "<span class='title'>Electrons per shell:</span> <span class='content'>2, 8, 18, 32, 32, 18, 8</span>",
      "phase-at-STP":
        "<span class='title'>Phase at STP:</span> <span class='content'>Solid</span>",
      "melting-point":
        "<span class='title'>Melting point:</span> <span class='content'>unknown</span>",
      "boiling-point":
        "<span class='title'>Boiling point:</span> <span class='content'>unknown</span>",
      "oxidation-states":
        "<span class='title'>Oxidation states:</span> <span class='content'>+1, +3, +5</span>",
      electronegativity:
        "<span class='title'>Pauling scale:</span> <span class='content'>0.9</span>",
      "ionization-energy":
        "<span class='title'>Ionization energy:</span> <span class='content'>1st: 830 kJ/mol</span>",
      "covalent-radius":
        "<span class='title'>Covalent radius:</span> <span class='content'>unknown</span>",
      "van-der-waals-radius":
        "<span class='title'>Van der Waals radius:</span> <span class='content'>unknown</span>",
      "crystal-structure":
        "<span class='title'>Crystal structure:</span> <span class='content'>unknown</span>",
      "thermal-conductivity":
        "<span class='title'>Thermal conductivity:</span> <span class='content'>unknown</span>",
      "magnetic-order":
        "<span class='title'>Magnetic order:</span> <span class='content'>unknown</span>",
      "magnetic-susceptibility":
        "<span class='title'>Magnetic susceptibility:</span> <span class='content'>unknown</span>",
      miscellaneous:
        "<span class='title'>Miscellaneous:</span> <span class='content'>First synthesized by the Joint Institute for Nuclear Research (JINR) and Lawrence Livermore National Laboratory (LLNL) in 2002</span>"
    }
  };

let periodList = document.querySelectorAll(".period__item"),
  groupList = document.querySelectorAll(".group__item"),
  elementList = document.querySelectorAll(".element"),
  legendList = document.querySelectorAll(".legend-box"),
  temperatureSlider = document.querySelector(".temperature__inputs__slider"),
  resetTemperatureButton = document.querySelector(".reset__temperature"),
  lanthanoidBox = document.querySelector(`[data-element-name='Lanthanoids']`),
  actinoidBox = document.querySelector(`[data-element-name='Actinoids']`),
  modalBox = document.querySelector(".modal"),
  modalContent = document.querySelector(".modal__content"),
  modalProperties = document.querySelector(".modal__content__properties"),
  modalClose = document.querySelector(".modal__close"),
  isOpen = false,
  elementClicked;

window.addEventListener("scroll", () => {
  const scrollY = window.scrollY > 0 ? true : false,
    scrollX = window.scrollX > 0 ? true : false,
    period = document.querySelector(".period__list"),
    group = document.querySelector(".group__list");

  if (scrollX) {
    addClass("--is-fixed", period, 0);
    period.style.left = `${window.scrollX}px`;
  } else {
    removeClass("--is-fixed", period, 0);
    period.style.left = 0;
  }
  if (scrollY) {
    addClass("--is-fixed", group, 0);
  } else {
    removeClass("--is-fixed", group, 0);
  }
});

modalClose.addEventListener("click", closeModal);
modalBox.addEventListener("click", closeModal);
document.addEventListener("keydown", (event) => {
  if (event.keyCode === 27 && isOpen) {
    closeModal(event);
  }
});

actinoidBox.addEventListener("mouseenter", (self) => {
  const dataActinoids = self.target.getAttribute("data-element-type"),
    dataToSearch = "type";

  highlightElement(dataActinoids, dataToSearch);
});

actinoidBox.addEventListener("mouseleave", () => {
  equalizeElement();
});

lanthanoidBox.addEventListener("mouseenter", (self) => {
  const dataLantanoids = self.target.getAttribute("data-element-type"),
    dataToSearch = "type";

  highlightElement(dataLantanoids, dataToSearch);
});

lanthanoidBox.addEventListener("mouseleave", () => {
  equalizeElement();
});

resetTemperatureButton.addEventListener("click", () => {
  const dataToSearch = ["melting-point", "boiling-point"];

  temperatureSlider.value = STP;

  setNewTemperature(STP);
  highlightElement(STP, dataToSearch);
  removeClass("--is-visible", resetTemperatureButton, 0);
});

temperatureSlider.addEventListener("input", (self) => {
  const currentValue = Number(self.target.value),
    dataToSearch = ["melting-point", "boiling-point"];

  if (
    currentValue !== STP &&
    !resetTemperatureButton.classList.contains("--is-visible")
  ) {
    addClass("--is-visible", resetTemperatureButton, 0);
  } else if (currentValue === STP) {
    removeClass("--is-visible", resetTemperatureButton, 0);
  }

  setNewTemperature(currentValue);
  highlightElement(currentValue, dataToSearch);
});

Array.from(elementList).forEach((elementItem) => {
  elementItem.addEventListener("click", () => {
    if (isLanthanoidOrActinoid(elementItem)) {
      elementClicked = elementItem;
      elementName = elementClicked.getAttribute("data-element-name");

      modalAnimation(elementItem);
      createModalContent(elementName);
    }
  });
});

Array.from(legendList).forEach((legendItem) => {
  legendItem.addEventListener("mouseenter", (self) => {
    let legendData, dataToSearch;

    if (legendItem.getAttribute("data-element-type")) {
      legendData = self.target.getAttribute("data-element-type");
      dataToSearch = "type";
    } else {
      legendData = self.target.getAttribute("data-element-state");
      dataToSearch = "state";
    }

    highlightElement(legendData, dataToSearch);
  });

  legendItem.addEventListener("mouseleave", () => {
    equalizeElement();
  });
});

Array.from(periodList).forEach((periodItem) => {
  periodItem.addEventListener("mouseenter", (self) => {
    const periodNumber = Number(self.target.firstChild.innerHTML),
      dataToSearch = "period";

    highlightElement(periodNumber, dataToSearch);
  });

  periodItem.addEventListener("mouseleave", () => {
    equalizeElement();
  });
});

Array.from(groupList).forEach((groupItem) => {
  groupItem.addEventListener("mouseenter", (self) => {
    const groupNumber = Number(self.target.firstChild.innerHTML),
      dataToSearch = "group";

    highlightElement(groupNumber, dataToSearch);
  });

  groupItem.addEventListener("mouseleave", () => {
    equalizeElement();
  });
});

function equalizeElement() {
  let index = 0;

  Array.from(elementList).forEach((elementItem) => {
    removeClass("--is-active", elementItem, index);
    index++;
  });
}

function highlightElement(dataElement, dataToSearch) {
  let index = 0;

  Array.from(elementList).forEach((elementItem) => {
    let dataFromElement = elementItem.getAttribute(
      `data-element-${dataToSearch}`
    );

    if (dataToSearch === "group" || dataToSearch === "period") {
      dataFromElement = Number(dataFromElement);
    }

    if (dataToSearch.length === 2) {
      let meltingPoint = Number(
          elementItem.getAttribute(`data-element-${dataToSearch[0]}`)
        ),
        boilingPoint = Number(
          elementItem.getAttribute(`data-element-${dataToSearch[1]}`)
        );

      if (!isNaN(meltingPoint) && !isNaN(boilingPoint)) {
        if (dataElement < meltingPoint) {
          elementItem.setAttribute("data-element-state", "solid");
        } else if (dataElement < boilingPoint) {
          if (isLanthanoidOrActinoid(elementItem)) {
            elementItem.setAttribute("data-element-state", "liquid");
          }
        } else {
          elementItem.setAttribute("data-element-state", "gas");
        }
      } else if (isNaN(boilingPoint)) {
        let elementState = "unknown";
        if (dataElement < meltingPoint) {
          elementState = "solid";
        }
        elementItem.setAttribute("data-element-state", elementState);
      }
    }

    if (dataElement === dataFromElement) {
      addClass("--is-active", elementItem, index);
    }

    index++;
  });
}

function createModalContent(elementName) {
  Object.keys(ELEMENT_MODAL_DATA[elementName]).forEach(
    (key) =>
      (modalProperties.innerHTML += `<p class='element-property element-${key} flex-column-wrap'>${ELEMENT_MODAL_DATA[elementName][key]}</p>`)
  );
}

function removeModalContent() {
  modalProperties.innerHTML = "";
}

function modalAnimation(self) {
  let selfProperties = self.getBoundingClientRect(),
    modalProperties = modalContent.getBoundingClientRect(),
    tooltip = self.querySelector(".tooltip"),
    translateX,
    translateY,
    scale,
    positionX = window.innerWidth / 2,
    positionY = window.innerHeight / 2;

  addClass("--is-hidden", tooltip, 0);
  addClass("--is-triggered", self, 0);
  addClass("modal__background", modalBox, 0);

  scale = modalProperties.width / 100;
  translateX = Math.round(
    positionX - selfProperties.left - selfProperties.width / 2
  );
  translateY = Math.round(
    positionY - selfProperties.top - selfProperties.height / 2
  );
  self.style.transform = `translate(${translateX}px, ${translateY}px) scale(${scale})`;

  window.requestAnimationFrame(() => {
    openModal();
  });
}

function openModal() {
  if (!isOpen) {
    const content = modalBox.querySelector(".modal__content");

    addClass("--is-visible", modalBox, 0);
    addClass("--is-visible", content, 75);

    content.addEventListener("transitionend", hideContent(content), false);

    isOpen = true;
  }
}

function hideContent(content) {
  content.removeEventListener("transitionend", hideContent, false);
}

function closeModal(event) {
  event.preventDefault();
  event.stopImmediatePropagation();

  const target = event.target,
    tooltip = elementClicked.querySelector(".tooltip");

  if (
    (isOpen && target.classList.contains("modal__background")) ||
    target.classList.contains("modal__close") ||
    event.keyCode === 27
  ) {
    removeClass("--is-visible", modalBox, 0);
    removeClass("--is-visible", modalContent, 0);

    elementClicked.removeAttribute("style");

    removeClass("--is-triggered", elementClicked, 0);
    removeClass("modal__background", modalBox, 0);
    removeClass("--is-hidden", tooltip, 0);

    removeModalContent();

    elementClicked = "";
    isOpen = false;
  }
}

function setNewTemperature(currentValue) {
  const kelvinOutput = document.querySelector(".temperature__inputs__result"),
    celsiusOutput = document.querySelector(".celsius"),
    farenheitOutput = document.querySelector(".farenheit");

  kelvinOutput.innerHTML = `${currentValue} K`;
  celsiusOutput.innerHTML = `${currentValue - 273}ºC`;
  farenheitOutput.innerHTML = `${
    Math.round(((currentValue * 9) / 5 - 460) * 100) / 100
  }ºF`;
}

function addClass(className, element, index) {
  setTimeout(() => {
    element.classList.add(className);
  }, index * DELAY);
}

function removeClass(className, element, index) {
  setTimeout(() => {
    element.classList.remove(className);
  }, index * DELAY);
}

function isLanthanoidOrActinoid(elementItem) {
  return (
    elementItem.getAttribute("data-element-name") !== "Lanthanoids" &&
    elementItem.getAttribute("data-element-name") !== "Actinoids"
  );
}

              
            
!
999px

Console