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<h1 class="z">Abundance in carbonaceous meteorites (by weight)</h1> </div> </div> <div class="pure-menu pure-menu-horizontal">   <ul class="pure-menu-list"> <li class="pure-menu-item pure-menu-selected z_menu"><a href="./" class="pure-menu-link">Abundance in carbonaceous meteorites (by weight)</a></li> <li class="pure-menu-item pure-menu-has-children pure-menu-allow-hover z_menu"><a href="./" class="pure-menu-link">Gallery of images</a> <ul class="pure-menu-children"> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="index.html">Periodic table gallery</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="heatscape.html">Heatscapes</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="bar_chart.html">Bar chart </a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_1.html">Group 1</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_2.html">Group 2</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_3.html">Group 3</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_4.html">Group 4</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_5.html">Group 5</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_6.html">Group 6</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_8.html">Group 8</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_9.html">Group 9</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_10.html">Group 10</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_11.html">Group 11</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_12.html">Group 12</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_13.html">Group 13</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_14.html">Group 14</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_15.html">Group 15</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_16.html">Group 16</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="group_17.html">Group 17</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_2sp.html">Period 2</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_3sp.html">Period 3</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_4sp.html">Period 4sp</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_4spd.html">Period 4</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_4d.html">Period 4d</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_5sp.html">Period 5sp</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_5spd.html">Period 5spd</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_5d.html">Period 5d</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_6sp.html">Period 6sp</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_6spd.html">Period 6spd</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_6spdf.html">Period 6</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_6d.html">Period 6d</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="period_6f.html">Period 6f</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="block_sp.html">s- and p-Block</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="block_d.html">d-Block</a></li> <li class="pure-menu-item, z_menu_item"><a class="pure-menu-link" href="block_f.html">f-Block</a></li> </ul> </li> </ul>     </div> <p>The values here are estimates adapted from references 1 and 2 by taking a consensus or averaging where appropriate. For ease of comparison with other abundance values, all abundance data in WebElements have been scaled to parts per billion (ppb), both as ppb by weight and by number of atoms. Values for less common elements should be treated with some caution and none of the data is better than one or sometimes two significant figures. Values for any individual carbonaceous meteorite will vary widely. Values for other classes of meteorite will vary from those given here.</p> <figure><img class="pure-img" src= "../../_media/periodicity/tables/periodicity_cityscape_white/abund_met_stony_city_w.png" alt="Image showing periodicity of the chemical elements for abundance in carbonaceous meteorites (by weight) in a periodic table cityscape style." /><figcaption>Image showing periodicity of the chemical elements for abundance in carbonaceous meteorites (by weight) in a periodic table cityscape style.</figcaption></figure> <figure><img class="pure-img" src= "../../_media/periodicity/tables/periodicity_heatscape_white/abund_met_stony_heat_w.png" alt="Image showing periodicity of the chemical elements for abundance in carbonaceous meteorites (by weight) in a periodic table heatscape style." /><figcaption>Image showing periodicity of the chemical elements for abundance in carbonaceous meteorites (by weight) in a periodic table heatscape style.</figcaption></figure> <figure><img class="pure-img" src= "../../_media/periodicity/tables/periodicity_spiral_heatscape_black/abund_met_stony_sp_h_b.png" alt="Image showing periodicity of the chemical elements for abundance in carbonaceous meteorites (by weight) in a spiral periodic table heatscape style." /><figcaption>Image showing periodicity of the chemical elements for abundance in carbonaceous meteorites (by weight) in a spiral periodic table heatscape style.</figcaption></figure> <figure><img class="pure-img" src= "../../_media/periodicity/tables/periodicity_spiral_columns_white/abund_met_stony_sp_c_w.png" alt="Image showing periodicity of the chemical elements for abundance in carbonaceous meteorites (by weight) in a 3D spiral periodic table column style." /><figcaption>Image showing periodicity of the chemical elements for abundance in carbonaceous meteorites (by weight) in a 3D spiral periodic table column style.</figcaption></figure> <figure><img class="pure-img" src= "../../_media/periodicity/tables/periodicity_columns_white/abund_met_stony_col_w.png" alt="Image showing periodicity of the chemical elements for abundance in carbonaceous meteorites (by weight) in a 3D periodic table column style." /><figcaption>Image showing periodicity of the chemical elements for abundance in carbonaceous meteorites (by weight) in a 3D periodic table column style.</figcaption></figure> <figure></figure> <figure></figure> <div class="adsense_responsive"><script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script>  <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-9334432533380510" data-ad-slot="4479092381" data-ad-format="auto"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script></div> <h2 class="z">Units</h2> <p>ppb by weight</p> <h2 class="heading2">Notes</h2> <p>The units used in WebElements for all abundance data are ppb by weight which means <strong>parts per billion by weight</strong>, that is mg tonne<sup>-3</sup> or mg per 1000 kg. All abundance data are <em>also</em> presented as ppb by atoms, which means atoms of the element per billion atoms.</p> <p>The reason for rescaling all data is as follows. It is common to see, say, solar abundances expressed as the number of atoms of the element relative to a scale upon which the abundance of hydrogen is defined as 10<sup>12</sup>. This makes comparison with, say, crustal abundances difficult, since crustal abundances are often expressed in terms of parts per million by weight. Hence a common scale is used throughout and I chose ppb as this gives manageable numbers for most elements.</p> <p>For access to other abundance data as ppb by weight, select from:</p> <ul> <li><a class="pure-menu-link" href="../abund_universe/">universe</a></li> <li><a class="pure-menu-link" href="../abund_sun/">solar</a></li> <li><a class="pure-menu-link" href="../abund_met_stony/">carbonaceous meteorites</a></li> <li><a class="pure-menu-link" href="../abund_met_iron/">iron meteorites</a></li> <li><a class="pure-menu-link" href="../abund_crust/">earth's crustal rocks</a></li> <li><a class="pure-menu-link" href="../abund_seawater/">oceans</a></li> <li><a class="pure-menu-link" href="../abund_stream/">stream</a></li> <li><a class="pure-menu-link" href="../abund_humans/">humans</a></li> </ul> <p>For access to other abundance data as ppb by atoms, select from:</p> <ul> <li><a class="pure-menu-link" href="../abund_universe_a/">universe</a></li> <li><a class="pure-menu-link" href="../abund_sun_a/">solar</a></li> <li><a class="pure-menu-link" href="../abund_met_stony_a/">carbonaceous meteorites</a></li> <li><a class="pure-menu-link" href="../abund_met_iron_a/">iron meteorites</a></li> <li><a class="pure-menu-link" href="../abund_crust_a/">earth's crustal rocks</a></li> <li><a class="pure-menu-link" href="../abund_seawater_a/">oceans</a></li> <li><a class="pure-menu-link" href="../abund_stream_a/">stream</a></li> <li><a class="pure-menu-link" href="../abund_humans_a/">humans</a></li> </ul> <h2 class="z">Literature sources</h2> <ol> <li>G.W.C. Kaye and T.H. Laby in <em>Tables of physical and chemical constants</em>, Longman, London, UK, 15th edition, 1993.</li> <li>P.A. Cox in <em><a href="http://www.amazon.com/exec/obidos/ASIN/019855298X/webelements">The Elements : Their Origin, Abundance, and Distribution</a></em>, Oxford University Press, Oxford, UK, 1989.</li> </ol> </main> <div class="table-responsive"> <table class="pure-table periodic-table"> <caption class="periodic_table_caption">Explore the element of your choice through this periodic table.</caption> <thead> <tr> <th class="w5">1</th> <th class="w5">2</th> <th class="w2"> </th> <th class="w5">3</th> <th class="w5">4</th> <th class="w5">5</th> <th class="w5">6</th> <th class="w5">7</th> <th class="w5">8</th> <th class="w5">9</th> <th class="w5">10</th> <th class="w5">11</th> <th class="w5">12</th> <th class="w5">13</th> <th class="w5">14</th> <th class="w5">15</th> <th class="w5">16</th> <th class="w5">17</th> <th class="w5">18</th> </tr> </thead> <tbody> <tr> <td class="s"> <div class="at_num">1</div> <div class="sym"><a class="sym" href="../../hydrogen/" title="Hydrogen">H</a></div> </td> <td class="v"></td> <td colspan="16" class="v"></td> <td class="p"> <div class="at_num">2</div> <div class="sym"><a class="sym" href="../../helium/" title="Helium">He</a></div> </td> </tr> <tr> <td class="s"> <div class="at_num">3</div> <div class="sym"><a class="sym" href="../../lithium/" title="Lithium">Li</a></div> </td> <td class="s"> <div class="at_num">4</div> <div class="sym"><a class="sym" href="../../beryllium/" title="Beryllium">Be</a></div> </td> <td colspan="11"></td> <td class="p"> <div class="at_num">5</div> <div class="sym"><a class="sym" href="../../boron/" title="|title_5">B</a></div> </td> <td class="p"> <div class="at_num">6</div> <div class="sym"><a class="sym" href="../../carbon/" title="|title_6">C</a></div> </td> <td class="p"> <div class="at_num">7</div> <div class="sym"><a class="sym" href="../../nitrogen/" title="Nitrogen">N</a></div> </td> <td class="p"> <div class="at_num">8</div> <div class="sym"><a class="sym" href="../../oxygen/" title="Oxygen">O</a></div> </td> <td class="p"> <div class="at_num">9</div> <div class="sym"><a class="sym" href="../../fluorine/" title="Fluorine">F</a></div> </td> <td class="p"> <div class="at_num">10</div> <div class="sym"><a class="sym" href="../../neon/" title="Neon">Ne</a></div> </td> </tr> <tr> <td class="s"> <div class="at_num">11</div> <div class="sym"><a class="sym" href="../../sodium/" title="Sodium">Na</a></div> </td> <td class="s"> <div class="at_num">12</div> <div class="sym"><a class="sym" href="../../magnesium/" title="Magnesium">Mg</a></div> </td> <td colspan="11" class="void"></td> <td class="p"> <div class="at_num">13</div> <div class="sym"><a class="sym" href="../../aluminium/" title="Aluminium">Al</a></div> </td> <td class="p"> <div class="at_num">14</div> <div class="sym"><a class="sym" href="../../silicon/" title="Silicon">Si</a></div> </td> <td class="p"> <div class="at_num">15</div> <div class="sym"><a class="sym" href="../../phosphorus/" title="Phosphorus">P</a></div> </td> <td class="p"> <div class="at_num">16</div> <div class="sym"><a class="sym" href="../../sulfur/" title="Sulfur">S</a> </div> </td> <td class="p"> <div class="at_num">17</div> <div class="sym"><a class="sym" href="../../chlorine/" title="Chlorine">Cl</a></div> </td> <td class="p"> <div class="at_num">18</div> <div class="sym"><a class="sym" href="../../argon/" title="Argon">Ar</a></div> </td> </tr> <tr> <td class="s"> <div class="at_num">19</div> <div class="sym"><a class="sym" href="../../potassium/" title="Potassium">K</a></div> </td> <td class="s"> <div class="at_num">20</div> <div class="sym"><a class="sym" href="../../calcium/" title="Calcium">Ca</a></div> </td> <td class="void"></td> <td class="d"> <div class="at_num">21</div> <div class="sym"><a class="sym" href="../../scandium/" title="Scandium">Sc</a></div> </td> <td class="d"> <div class="at_num">22</div> <div class="sym"><a class="sym" href="../../titanium/" title="Titanium">Ti</a></div> </td> <td class="d"> <div class="at_num">23</div> <div class="sym"><a class="sym" href="../../vanadium/" title="Vanadium">V</a></div> </td> <td class="d"> <div class="at_num">24</div> <div class="sym"><a class="sym" href="../../chromium/" title="Chromium">Cr</a></div> </td> <td class="d"> <div class="at_num">25</div> <div class="sym"><a class="sym" href="../../manganese/" title="Manganese">Mn</a></div> </td> <td class="d"> <div class="at_num">26</div> <div class="sym"><a class="sym" href="../../iron/" title="Iron">Fe</a></div> </td> <td class="d"> <div class="at_num">27</div> <div class="sym"><a class="sym" href="../../cobalt/" title="Cobalt">Co</a></div> </td> <td class="d"> <div class="at_num">28</div> <div class="sym"><a class="sym" href="../../nickel/" title="Nickel">Ni</a></div> </td> <td class="d"> <div class="at_num">29</div> <div class="sym"><a class="sym" href="../../copper/" title="Copper">Cu</a></div> </td> <td class="d"> <div class="at_num">30</div> <div class="sym"><a class="sym" href="../../zinc/" title="Zinc">Zn</a></div> </td> <td class="p"> <div class="at_num">31</div> <div class="sym"><a class="sym" href="../../gallium/" title="Gallium">Ga</a></div> </td> <td class="p"> <div class="at_num">32</div> <div class="sym"><a class="sym" href="../../germanium/" title="Germanium">Ge</a></div> </td> <td class="p"> <div class="at_num">33</div> <div class="sym"><a class="sym" href="../../arsenic/" title="Arsenic">As</a></div> </td> <td class="p"> <div class="at_num">34</div> <div class="sym"><a class="sym" href="../../selenium/" title="Selenium">Se</a></div> </td> <td class="p"> <div class="at_num">35</div> <div class="sym"><a class="sym" href="../../bromine/" title="Bromine">Br</a></div> </td> <td class="p"> <div class="at_num">36</div> <div class="sym"><a class="sym" href="../../krypton/" title="Krypton">Kr</a></div> </td> </tr> <tr> <td class="s"> <div class="at_num">37</div> <div class="sym"><a class="sym" href="../../rubidium/" title="Rubidium">Rb</a></div> </td> <td class="s"> <div class="at_num">38</div> <div class="sym"><a class="sym" href="../../strontium/" title="Strontium">Sr</a></div> </td> <td class="void"></td> <td class="d"> <div class="at_num">39</div> <div class="sym"><a class="sym" href="../../yttrium/" title="Yttrium">Y</a></div> </td> <td class="d"> <div class="at_num">40</div> <div class="sym"><a class="sym" href="../../zirconium/" title="Zirconium">Zr</a></div> </td> <td class="d"> <div class="at_num">41</div> <div class="sym"><a class="sym" href="../../niobium/" title="Niobium">Nb</a></div> </td> <td class="d"> <div class="at_num">42</div> <div class="sym"><a class="sym" href="../../molybdenum/" title="Molybdenum">Mo</a></div> </td> <td class="d"> <div class="at_num">43</div> <div class="sym"><a class="sym" href="../../technetium/" title="Technetium">Tc</a></div> </td> <td class="d"> <div class="at_num">44</div> <div class="sym"><a class="sym" href="../../ruthenium/" title="Ruthenium">Ru</a></div> </td> <td class="d"> <div class="at_num">45</div> <div class="sym"><a class="sym" href="../../rhodium/" title="Rhodium">Rh</a></div> </td> <td class="d"> <div class="at_num">46</div> <div class="sym"><a class="sym" href="../../palladium/" title="Palladium">Pd</a></div> </td> <td class="d"> <div class="at_num">47</div> <div class="sym"><a class="sym" href="../../silver/" title="Silver">Ag</a></div> </td> <td class="d"> <div class="at_num">48</div> <div class="sym"><a class="sym" href="../../cadmium/" title="Cadmium">Cd</a></div> </td> <td class="p"> <div class="at_num">49</div> <div class="sym"><a class="sym" href="../../indium/" title="Indium">In</a></div> </td> <td class="p"> <div class="at_num">50</div> <div class="sym"><a class="sym" href="../../tin/" title="Tin">Sn</a></div> </td> <td class="p"> <div class="at_num">51</div> <div class="sym"><a class="sym" href="../../antimony/" title="Antimony">Sb</a></div> </td> <td class="p"> <div class="at_num">52</div> <div class="sym"><a class="sym" href="../../tellurium/" title="Tellurium">Te</a></div> </td> <td class="p"> <div class="at_num">53</div> <div class="sym"><a class="sym" href="../../iodine/" title="Iodine">I</a></div> </td> <td class="p"> <div class="at_num">54</div> <div class="sym"><a class="sym" href="../../xenon/" title="Xenon">Xe</a></div> </td> </tr> <tr> <td class="s"> <div class="at_num">55</div> <div class="sym"><a class="sym" href="../../caesium/" title="Caesium">Cs</a></div> </td> <td class="s"> <div class="at_num">56</div> <div class="sym"><a class="sym" href="../../barium/" title="Barium">Ba</a></div> </td> <th class="asterisk">*</th> <td class="d"> <div class="at_num xd">71</div> <div class="sym"><a class="sym" href="../../lutetium/" title="Lutetium">Lu</a></div> </td> <td class="d"> <div class="at_num">72</div> <div class="sym"><a class="sym" href="../../hafnium/" title="Hafnium">Hf</a></div> </td> <td class="d"> <div class="at_num">73</div> <div class="sym"><a class="sym" href="../../tantalum/" title="Tantalum">Ta</a></div> </td> <td class="d"> <div class="at_num">74</div> <div class="sym"><a class="sym" href="../../tungsten/" title="Tungsten">W</a></div> </td> <td class="d"> <div class="at_num">75</div> <div class="sym"><a class="sym" href="../../rhenium/" title="Rhenium">Re</a></div> </td> <td class="d"> <div class="at_num">76</div> <div class="sym"><a class="sym" href="../../osmium/" title="Osmium">Os</a></div> </td> <td class="d"> <div class="at_num">77</div> <div class="sym"><a class="sym" href="../../iridium/" title="Iridium">Ir</a></div> </td> <td class="d"> <div class="at_num">78</div> <div class="sym"><a class="sym" href="../../platinum/" title="Platinum">Pt</a></div> </td> <td class="d"> <div class="at_num">79</div> <div class="sym"><a class="sym" href="../../gold/" title="Gold">Au</a></div> </td> <td class="d"> <div class="at_num">80</div> <div class="sym"><a class="sym" href="../../mercury/" title="Mercury">Hg</a></div> </td> <td class="p"> <div class="at_num">81</div> <div class="sym"><a class="sym" href="../../thallium/" title="Thallium">Tl</a></div> </td> <td class="p"> <div class="at_num">82</div> <div class="sym"><a class="sym" href="../../lead/" title="Lead">Pb</a></div> </td> <td class="p"> <div class="at_num">83</div> <div class="sym"><a class="sym" href="../../bismuth/" title="Bismuth">Bi</a></div> </td> <td class="p"> <div class="at_num">84</div> <div class="sym"><a class="sym" href="../../polonium/" title="Polonium">Po</a></div> </td> <td class="p"> <div class="at_num">85</div> <div class="sym"><a class="sym" href="../../astatine/" title="Astatine">At</a></div> </td> <td class="p"> <div class="at_num">86</div> <div class="sym"><a class="sym" href="../../radon/" title="Radon">Rn</a></div> </td> </tr> <tr> <td class="s"> <div class="at_num">87</div> <div class="sym"><a class="sym" href="../../francium/" title="Francium">Fr</a></div> </td> <td class="s"> <div class="at_num">88</div> <div class="sym"><a class="sym" href="../../radium/" title="Radium">Ra</a></div> </td> <th class="v">**</th> <td class="d"> <div class="at_num">103</div> <div class="sym"><a class="sym" href="../../lawrencium/" title="Lawrencium">Lr</a></div> </td> <td class="d"> <div class="at_num">104</div> <div class="sym"><a class="sym" href="../../rutherfordium/" title="Rutherfordium">Rf</a></div> </td> <td class="d"> <div class="at_num">105</div> <div class="sym"><a class="sym" href="../../dubnium/" title="Dubnium">Db</a></div> </td> <td class="d"> <div class="at_num">106</div> <div class="sym"><a class="sym" href="../../seaborgium/" title="Seaborgium">Sg</a></div> </td> <td class="d"> <div class="at_num">107</div> <div class="sym"><a class="sym" href="../../bohrium/" title="Bohrium">Bh</a></div> </td> <td class="d"> <div class="at_num">108</div> <div class="sym"><a class="sym" href="../../hassium/" title="Hassium">Hs</a></div> </td> <td class="d"> <div class="at_num">109</div> <div class="sym"><a class="sym" href="../../meitnerium/" title="Meitnerium">Mt</a></div> </td> <td class="d"> <div class="at_num">110</div> <div class="sym"><a class="sym" href="../../darmstadtium/" title="Darmstadtium">Ds</a></div> </td> <td class="d"> <div class="at_num">111</div> <div class="sym"><a class="sym" href="../../roentgenium/" title="Roentgenium">Rg</a></div> </td> <td class="d"> <div class="at_num">112</div> <div class="sym"><a class="sym" href="../../copernicium/" title="Copernicium">Cn</a></div> </td> <td class="p"> <div class="at_num">113</div> <div class="sym"><a class="sym" href="../../nihonium/" title="Nihonium">Nh</a></div> </td> <td class="p"> <div class="at_num">114</div> <div class="sym"><a class="sym" href="../../flerovium/" title="Flerovium">Fl</a></div> </td> <td class="p"> <div class="at_num">115</div> <div class="sym"><a class="sym" href="../../moscovium/" title="Moscovium">Mc</a></div> </td> <td class="p"> <div class="at_num">116</div> <div class="sym"><a class="sym" href="../../livermorium/" title="Livermorium">Lv</a></div> </td> <td class="p"> <div class="at_num">117</div> <div class="sym"><a class="sym" href="../../tennessine/" title="Tennessine">Ts</a></div> </td> <td class="p"> <div class="at_num">118</div> <div class="sym"><a class="sym" href="../../oganesson/" title="Oganesson">Og</a></div> </td> </tr> <tr> <td colspan="19" class="v"> </td> </tr> <tr> <th class="lbl" colspan="2">*Lanthanoids</th> <th class="v">*</th> <td class="f"> <div class="at_num">57</div> <div class="sym"><a class="sym" href="../../lanthanum/" title="Lanthanum">La</a></div> </td> <td class="f"> <div class="at_num">58</div> <div class="sym"><a class="sym" href="../../cerium/" title="Cerium">Ce</a></div> </td> <td class="f"> <div class="at_num">59</div> <div class="sym"><a class="sym" href="../../praseodymium/" title="Praseodymium">Pr</a></div> </td> <td class="f"> <div class="at_num">60</div> <div class="sym"><a class="sym" href="../../neodymium/" title="Neodymium">Nd</a></div> </td> <td class="f"> <div class="at_num">61</div> <div class="sym"><a class="sym" href="../../promethium/" title="Promethium">Pm</a></div> </td> <td class="f"> <div class="at_num">62</div> <div class="sym"><a class="sym" href="../../samarium/" title="Samarium">Sm</a></div> </td> <td class="f"> <div class="at_num">63</div> <div class="sym"><a class="sym" href="../../europium/" title="Europium">Eu</a></div> </td> <td class="f"> <div class="at_num">64</div> <div class="sym"><a class="sym" href="../../gadolinium/" title="Gadolinium">Gd</a></div> </td> <td class="f"> <div class="at_num">65</div> <div class="sym"><a class="sym" href="../../terbium/" title="Terbium">Tb</a></div> </td> <td class="f"> <div class="at_num">66</div> <div class="sym"><a class="sym" href="../../dysprosium/" title="Dysprosium">Dy</a></div> </td> <td class="f"> <div class="at_num">67</div> <div class="sym"><a class="sym" href="../../holmium/" title="Holmium">Ho</a></div> </td> <td class="f"> <div class="at_num">68</div> <div class="sym"><a class="sym" href="../../erbium/" title="Erbium">Er</a></div> </td> <td class="f"> <div class="at_num">69</div> <div class="sym"><a class="sym" href="../../thulium/" title="Thulium">Tm</a></div> </td> <td class="f"> <div class="at_num">70</div> <div class="sym"><a class="sym" href="../../ytterbium/" title="Ytterbium">Yb</a></div> </td> <td colspan="2"></td> </tr> <tr> <th class="lbl" colspan="2">**Actinoids</th> <th class="v">**</th> <td class="f"> <div class="at_num">89</div> <div class="sym"><a class="sym" href="../../actinium/" title="Actinium">Ac</a></div> </td> <td class="f"> <div class="at_num">90</div> <div class="sym"><a class="sym" href="../../thorium/" title="Thorium">Th</a></div> </td> <td class="f"> <div class="at_num">91</div> <div class="sym"><a class="sym" href="../../protactinium/" title="Protactinium">Pa</a></div> </td> <td class="f"> <div class="at_num">92</div> <div class="sym"><a class="sym" href="../../uranium/" title="Uranium">U</a></div> </td> <td class="f"> <div class="at_num">93</div> <div class="sym"><a class="sym" href="../../neptunium/" title="Neptunium">Np</a></div> </td> <td class="f"> <div class="at_num">94</div> <div class="sym"><a class="sym" href="../../plutonium/" title="Plutonium">Pu</a></div> </td> <td class="f"> <div class="at_num">95</div> <div class="sym"><a class="sym" href="../../americium/" title="Americium">Am</a></div> </td> <td class="f"> <div class="at_num">96</div> <div class="sym"><a class="sym" href="../../curium/" title="Curium">Cm</a></div> </td> <td class="f"> <div class="at_num">97</div> <div class="sym"><a class="sym" href="../../berkelium/" title="Berkelium">Bk</a></div> </td> <td class="f"> <div class="at_num">98</div> <div class="sym"><a class="sym" href="../../californium/" title="Californium">Cf</a></div> </td> <td class="f"> <div class="at_num">99</div> <div class="sym"><a class="sym" href="../../einsteinium/" title="Einsteinium">Es</a></div> </td> <td class="f"> <div class="at_num">100</div> <div class="sym"><a class="sym" href="../../fermium/" title="Fermium">Fm</a></div> </td> <td class="f"> <div class="at_num">101</div> <div class="sym"><a class="sym" href="../../mendelevium/" title="Mendelevium">Md</a></div> </td> <td class="f"> <div class="at_num">102</div> <div class="sym"><a class="sym" href="../../nobelium/" title="Nobelium">No</a></div> </td> <td colspan="2"></td> </tr> </tbody> </table> </div> <div id="footer"> <footer> <div class="footer"> <div class="pure-g"> <div class="pure-u-1-2 pure-u-sm-1-2 pure-u-lg-1-4 pure-menu custom-restricted-width"> <ul class="pure-menu-list"> <li class="pure-menu-heading footer_h">Key properties</li> <li class="pure-menu-item"><a class="pure-menu-link" href="https://www.webelements.com/periodicity/eneg_pauling/">Electronegativity </a></li> <li class="pure-menu-item"><a class="pure-menu-link" 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