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href="element.html?num=38"id="element38"class="elements alkalineEarthMetals r5 c2"><div class="eleNum">38</div><div class="eleSym heavyFont">Sr</div><div class="eleNm"id="strontium"></div><div class="eleWt">87.62</div></a><td id="ele39"class="eleTD"><a href="element.html?num=39"id="element39"class="elements transitionMetals r5 c3"><div class="eleNum">39</div><div class="eleSym heavyFont">Y</div><div class="eleNm"id="yttrium"></div><div class="eleWt">88.90585</div></a><td id="ele40"class="eleTD"><a href="element.html?num=40"id="element40"class="elements transitionMetals r5 c4"><div class="eleNum">40</div><div class="eleSym heavyFont">Zr</div><div class="eleNm"id="zirconium"></div><div class="eleWt">91.224</div></a><td id="ele41"class="eleTD"><a href="element.html?num=41"id="element41"class="elements transitionMetals r5 c5"><div class="eleNum">41</div><div class="eleSym heavyFont">Nb</div><div class="eleNm"id="niobium"></div><div class="eleWt">92.90638</div></a><td id="ele42"class="eleTD"><a href="element.html?num=42"id="element42"class="elements transitionMetals r5 c6"><div class="eleNum">42</div><div class="eleSym heavyFont">Mo</div><div class="eleNm"id="molybdenum"></div><div class="eleWt">95.96</div></a><td id="ele43"class="eleTD"><a href="element.html?num=43"id="element43"class="elements transitionMetals r5 c7"><div class="eleNum">43</div><div class="eleSym heavyFont">Tc</div><div class="eleNm"id="technetium"></div><div class="eleWt">[98]</div></a><td id="ele44"class="eleTD"><a href="element.html?num=44"id="element44"class="elements transitionMetals r5 c8"><div class="eleNum">44</div><div class="eleSym heavyFont">Ru</div><div class="eleNm"id="ruthenium"></div><div class="eleWt">101.07</div></a><td id="ele45"class="eleTD"><a href="element.html?num=45"id="element45"class="elements transitionMetals r5 c9"><div class="eleNum">45</div><div class="eleSym heavyFont">Rh</div><div class="eleNm"id="rhodium"></div><div class="eleWt">102.9055</div></a><td id="ele46"class="eleTD"><a href="element.html?num=46"id="element46"class="elements transitionMetals r5 c10"><div class="eleNum">46</div><div class="eleSym heavyFont">Pd</div><div class="eleNm"id="palladium"></div><div class="eleWt">106.42</div></a><td id="ele47"class="eleTD"><a href="element.html?num=47"id="element47"class="elements transitionMetals r5 c11"><div class="eleNum">47</div><div class="eleSym heavyFont">Ag</div><div class="eleNm"id="silver"></div><div class="eleWt">107.8682</div></a><td id="ele48"class="eleTD"><a href="element.html?num=48"id="element48"class="elements transitionMetals r5 c12"><div class="eleNum">48</div><div class="eleSym heavyFont">Cd</div><div class="eleNm"id="cadmium"></div><div class="eleWt">112.411</div></a><td id="ele49"class="eleTD"><a href="element.html?num=49"id="element49"class="elements postTransitionMetals r5 c13"><div class="eleNum">49</div><div class="eleSym heavyFont">In</div><div class="eleNm"id="indium"></div><div class="eleWt">114.818</div></a><td id="ele50"class="eleTD"><a href="element.html?num=50"id="element50"class="elements postTransitionMetals r5 c14"><div class="eleNum">50</div><div class="eleSym heavyFont">Sn</div><div class="eleNm"id="tin"></div><div class="eleWt">118.71</div></a><td id="ele51"class="eleTD"><a href="element.html?num=51"id="element51"class="elements metalloids r5 c15"><div class="eleNum">51</div><div class="eleSym heavyFont">Sb</div><div class="eleNm"id="antimony"></div><div class="eleWt">121.76</div></a><td id="ele52"class="eleTD"><a href="element.html?num=52"id="element52"class="elements metalloids r5 c16"><div class="eleNum">52</div><div class="eleSym heavyFont">Te</div><div class="eleNm"id="tellurium"></div><div class="eleWt">127.6</div></a><td id="ele53"class="eleTD"><a href="element.html?num=53"id="element53"class="elements halogens r5 c17"><div class="eleNum">53</div><div class="eleSym heavyFont">I</div><div class="eleNm"id="iodine"></div><div class="eleWt">126.90447</div></a><td id="ele54"class="eleTD"><a href="element.html?num=54"id="element54"class="elements nobleGases r5 c18"><div class="eleNum">54</div><div class="eleSym heavyFont">Xe</div><div class="eleNm"id="xenon"></div><div class="eleWt">131.293</div></a><tr><td id="period6"class="periods unselectable r6 text-center">6<td id="ele55"class="eleTD"><a href="element.html?num=55"id="element55"class="elements alkaliMetals r6 c1"><div class="eleNum">55</div><div class="eleSym heavyFont">Cs</div><div class="eleNm"id="caesium"></div><div class="eleWt">132.9054519</div></a><td id="ele56"class="eleTD"><a href="element.html?num=56"id="element56"class="elements alkalineEarthMetals r6 c2"><div class="eleNum">56</div><div class="eleSym heavyFont">Ba</div><div class="eleNm"id="barium"></div><div class="eleWt">137.327</div></a><td id="star1"class="text-center">*<td id="ele72"class="eleTD"><a href="element.html?num=72"id="element72"class="elements transitionMetals r6 c4"><div class="eleNum">72</div><div class="eleSym heavyFont">Hf</div><div class="eleNm"id="hafnium"></div><div class="eleWt">178.49</div></a><td id="ele73"class="eleTD"><a href="element.html?num=73"id="element73"class="elements transitionMetals r6 c5"><div class="eleNum">73</div><div class="eleSym heavyFont">Ta</div><div class="eleNm"id="tantalum"></div><div class="eleWt">180.94788</div></a><td id="ele74"class="eleTD"><a href="element.html?num=74"id="element74"class="elements transitionMetals r6 c6"><div class="eleNum">74</div><div class="eleSym heavyFont">W</div><div class="eleNm"id="tungsten"></div><div class="eleWt">183.84</div></a><td id="ele75"class="eleTD"><a href="element.html?num=75"id="element75"class="elements transitionMetals r6 c7"><div class="eleNum">75</div><div class="eleSym heavyFont">Re</div><div class="eleNm"id="rhenium"></div><div class="eleWt">186.207</div></a><td id="ele76"class="eleTD"><a href="element.html?num=76"id="element76"class="elements transitionMetals r6 c8"><div class="eleNum">76</div><div class="eleSym heavyFont">Os</div><div class="eleNm"id="osmium"></div><div class="eleWt">190.23</div></a><td id="ele77"class="eleTD"><a href="element.html?num=77"id="element77"class="elements transitionMetals r6 c9"><div class="eleNum">77</div><div class="eleSym heavyFont">Ir</div><div class="eleNm"id="iridium"></div><div class="eleWt">192.217</div></a><td id="ele78"class="eleTD"><a href="element.html?num=78"id="element78"class="elements transitionMetals r6 c10"><div class="eleNum">78</div><div class="eleSym heavyFont">Pt</div><div class="eleNm"id="platinum"></div><div class="eleWt">195.084</div></a><td id="ele79"class="eleTD"><a href="element.html?num=79"id="element79"class="elements transitionMetals r6 c11"><div class="eleNum">79</div><div class="eleSym heavyFont">Au</div><div class="eleNm"id="gold"></div><div class="eleWt">196.966569</div></a><td id="ele80"class="eleTD"><a href="element.html?num=80"id="element80"class="elements transitionMetals r6 c12"><div class="eleNum">80</div><div class="eleSym heavyFont">Hg</div><div class="eleNm"id="mercury"></div><div class="eleWt">200.59</div></a><td id="ele81"class="eleTD"><a href="element.html?num=81"id="element81"class="elements postTransitionMetals r6 c13"><div class="eleNum">81</div><div class="eleSym heavyFont">Tl</div><div class="eleNm"id="thallium"></div><div class="eleWt">204.3833</div></a><td id="ele82"class="eleTD"><a href="element.html?num=82"id="element82"class="elements postTransitionMetals r6 c14"><div class="eleNum">82</div><div class="eleSym heavyFont">Pb</div><div class="eleNm"id="lead"></div><div class="eleWt">207.2</div></a><td id="ele83"class="eleTD"><a href="element.html?num=83"id="element83"class="elements postTransitionMetals r6 c15"><div class="eleNum">83</div><div class="eleSym heavyFont">Bi</div><div class="eleNm"id="bismuth"></div><div class="eleWt">208.9804</div></a><td id="ele84"class="eleTD"><a href="element.html?num=84"id="element84"class="elements metalloids r6 c16"><div class="eleNum">84</div><div class="eleSym heavyFont">Po</div><div class="eleNm"id="polonium"></div><div class="eleWt">[210]</div></a><td id="ele85"class="eleTD"><a href="element.html?num=85"id="element85"class="elements halogens r6 c17"><div class="eleNum">85</div><div class="eleSym heavyFont">At</div><div class="eleNm"id="astatine"></div><div class="eleWt">[210]</div></a><td id="ele86"class="eleTD"><a href="element.html?num=86"id="element86"class="elements nobleGases r6 c18"><div class="eleNum">86</div><div class="eleSym heavyFont">Rn</div><div class="eleNm"id="radon"></div><div class="eleWt">[222]</div></a><tr><td id="period7"class="periods unselectable r7 text-center">7<td id="ele87"class="eleTD"><a href="element.html?num=87"id="element87"class="elements alkaliMetals r7 c1"><div class="eleNum">87</div><div class="eleSym heavyFont">Fr</div><div class="eleNm"id="francium"></div><div class="eleWt">[223]</div></a><td id="ele88"class="eleTD"><a href="element.html?num=88"id="element88"class="elements alkalineEarthMetals r7 c2"><div class="eleNum">88</div><div class="eleSym heavyFont">Ra</div><div class="eleNm"id="radium"></div><div class="eleWt">[226]</div></a><td id="star2"class="text-center">**<td id="ele104"class="eleTD"><a href="element.html?num=104"id="element104"class="elements transitionMetals r7 c4"><div class="eleNum">104</div><div class="eleSym heavyFont">Rf</div><div class="eleNm"id="rutherfordium"></div><div class="eleWt">[267]</div></a><td id="ele105"class="eleTD"><a href="element.html?num=105"id="element105"class="elements transitionMetals r7 c5"><div class="eleNum">105</div><div class="eleSym heavyFont">Db</div><div class="eleNm"id="dubnium"></div><div class="eleWt">[268]</div></a><td id="ele106"class="eleTD"><a href="element.html?num=106"id="element106"class="elements transitionMetals r7 c6"><div class="eleNum">106</div><div class="eleSym heavyFont">Sg</div><div class="eleNm"id="seaborgium"></div><div class="eleWt">[269]</div></a><td id="ele107"class="eleTD"><a href="element.html?num=107"id="element107"class="elements transitionMetals r7 c7"><div class="eleNum">107</div><div class="eleSym heavyFont">Bh</div><div class="eleNm"id="bohrium"></div><div class="eleWt">[270]</div></a><td id="ele108"class="eleTD"><a href="element.html?num=108"id="element108"class="elements transitionMetals r7 c8"><div class="eleNum">108</div><div class="eleSym heavyFont">Hs</div><div class="eleNm"id="hassium"></div><div class="eleWt">[269]</div></a><td id="ele109"class="eleTD"><a href="element.html?num=109"id="element109"class="elements transitionMetals r7 c9"><div class="eleNum">109</div><div class="eleSym heavyFont">Mt</div><div class="eleNm"id="meitnerium"></div><div class="eleWt">[278]</div></a><td id="ele110"class="eleTD"><a href="element.html?num=110"id="element110"class="elements transitionMetals r7 c10"><div class="eleNum">110</div><div class="eleSym heavyFont">Ds</div><div class="eleNm"id="darmstadtium"></div><div class="eleWt">[281]</div></a><td id="ele111"class="eleTD"><a href="element.html?num=111"id="element111"class="elements transitionMetals r7 c11"><div class="eleNum">111</div><div class="eleSym heavyFont">Rg</div><div class="eleNm"id="roentgenium"></div><div class="eleWt">[281]</div></a><td id="ele112"class="eleTD"><a href="element.html?num=112"id="element112"class="elements transitionMetals r7 c12"><div class="eleNum">112</div><div class="eleSym heavyFont">Cn</div><div class="eleNm"id="copernicium"></div><div class="eleWt">[285]</div></a><td id="ele113"class="eleTD"><a href="element.html?num=113"id="element113"class="elements postTransitionMetals r7 c13"><div class="eleNum">113</div><div class="eleSym heavyFont">Nh</div><div class="eleNm"id="nihonium"></div><div class="eleWt">[286]</div></a><td id="ele114"class="eleTD"><a href="element.html?num=114"id="element114"class="elements postTransitionMetals r7 c14"><div class="eleNum">114</div><div class="eleSym heavyFont">Fl</div><div class="eleNm"id="flerovium"></div><div class="eleWt">[289]</div></a><td id="ele115"class="eleTD"><a href="element.html?num=115"id="element115"class="elements postTransitionMetals r7 c15"><div class="eleNum">115</div><div class="eleSym heavyFont">Mc</div><div class="eleNm"id="moscovium"></div><div class="eleWt">[288]</div></a><td id="ele116"class="eleTD"><a href="element.html?num=116"id="element116"class="elements postTransitionMetals r7 c16"><div class="eleNum">116</div><div class="eleSym heavyFont">Lv</div><div class="eleNm"id="livermorium"></div><div class="eleWt">[293]</div></a><td id="ele117"class="eleTD"><a href="element.html?num=117"id="element117"class="elements halogens r7 c17"><div class="eleNum">117</div><div class="eleSym heavyFont">Ts</div><div class="eleNm"id="tennessine"></div><div class="eleWt">[294]</div></a><td id="ele118"class="eleTD"><a href="element.html?num=118"id="element118"class="elements nobleGases r7 c18"><div class="eleNum">118</div><div class="eleSym heavyFont">Og</div><div class="eleNm"id="oganesson"></div><div class="eleWt">[294]</div></a><tr><td class="gap"><tr><td><td colspan="2"id="lanthanides"class="text-left"><span>* </span><span id="lanthanidesMain"></span><td id="ele57"class="eleTD"><a href="element.html?num=57"id="element57"class="elements lanthanides r6"><div class="eleNum">57</div><div class="eleSym heavyFont">La</div><div class="eleNm"id="lanthanum"></div><div class="eleWt">138.90547</div></a><td id="ele58"class="eleTD"><a href="element.html?num=58"id="element58"class="elements lanthanides r6"><div class="eleNum">58</div><div class="eleSym heavyFont">Ce</div><div class="eleNm"id="cerium"></div><div class="eleWt">140.116</div></a><td id="ele59"class="eleTD"><a href="element.html?num=59"id="element59"class="elements lanthanides r6"><div class="eleNum">59</div><div class="eleSym heavyFont">Pr</div><div class="eleNm"id="praseodymium"></div><div class="eleWt">140.90765</div></a><td id="ele60"class="eleTD"><a href="element.html?num=60"id="element60"class="elements lanthanides r6"><div class="eleNum">60</div><div class="eleSym heavyFont">Nd</div><div class="eleNm"id="neodymium"></div><div class="eleWt">144.242</div></a><td id="ele61"class="eleTD"><a href="element.html?num=61"id="element61"class="elements lanthanides r6"><div class="eleNum">61</div><div class="eleSym heavyFont">Pm</div><div class="eleNm"id="promethium"></div><div class="eleWt">[145]</div></a><td id="ele62"class="eleTD"><a href="element.html?num=62"id="element62"class="elements lanthanides r6"><div class="eleNum">62</div><div class="eleSym heavyFont">Sm</div><div class="eleNm"id="samarium"></div><div class="eleWt">150.36</div></a><td id="ele63"class="eleTD"><a href="element.html?num=63"id="element63"class="elements lanthanides r6"><div class="eleNum">63</div><div class="eleSym heavyFont">Eu</div><div class="eleNm"id="europium"></div><div class="eleWt">151.964</div></a><td id="ele64"class="eleTD"><a href="element.html?num=64"id="element64"class="elements lanthanides r6"><div class="eleNum">64</div><div class="eleSym heavyFont">Gd</div><div class="eleNm"id="gadolinium"></div><div class="eleWt">157.25</div></a><td id="ele65"class="eleTD"><a href="element.html?num=65"id="element65"class="elements lanthanides r6"><div class="eleNum">65</div><div class="eleSym heavyFont">Tb</div><div class="eleNm"id="terbium"></div><div class="eleWt">158.92535</div></a><td id="ele66"class="eleTD"><a href="element.html?num=66"id="element66"class="elements lanthanides r6"><div class="eleNum">66</div><div class="eleSym heavyFont">Dy</div><div class="eleNm"id="dysprosium"></div><div class="eleWt">162.5</div></a><td id="ele67"class="eleTD"><a href="element.html?num=67"id="element67"class="elements lanthanides r6"><div class="eleNum">67</div><div class="eleSym heavyFont">Ho</div><div class="eleNm"id="holmium"></div><div class="eleWt">164.93032</div></a><td id="ele68"class="eleTD"><a href="element.html?num=68"id="element68"class="elements lanthanides r6"><div class="eleNum">68</div><div class="eleSym heavyFont">Er</div><div class="eleNm"id="erbium"></div><div class="eleWt">167.259</div></a><td id="ele69"class="eleTD"><a href="element.html?num=69"id="element69"class="elements lanthanides r6"><div class="eleNum">69</div><div class="eleSym heavyFont">Tm</div><div class="eleNm"id="thulium"></div><div class="eleWt">168.93421</div></a><td id="ele70"class="eleTD"><a href="element.html?num=70"id="element70"class="elements lanthanides r6"><div class="eleNum">70</div><div class="eleSym heavyFont">Yb</div><div class="eleNm"id="ytterbium"></div><div class="eleWt">173.054</div></a><td id="ele71"class="eleTD"><a href="element.html?num=71"id="element71"class="elements lanthanides r6"><div class="eleNum">71</div><div class="eleSym heavyFont">Lu</div><div class="eleNm"id="lutetium"></div><div class="eleWt">174.9668</div></a><tr><td><td colspan="2"id="actinides"class="text-left"><span>** </span><span id="actinidesMain"></span><td id="ele89"class="eleTD"><a href="element.html?num=89"id="element89"class="elements actinides r7"><div class="eleNum">89</div><div class="eleSym heavyFont">Ac</div><div class="eleNm"id="actinium"></div><div class="eleWt">[227]</div></a><td id="ele90"class="eleTD"><a href="element.html?num=90"id="element90"class="elements actinides r7"><div class="eleNum">90</div><div class="eleSym heavyFont">Th</div><div class="eleNm"id="thorium"></div><div class="eleWt">232.03806</div></a><td id="ele91"class="eleTD"><a href="element.html?num=91"id="element91"class="elements actinides r7"><div class="eleNum">91</div><div class="eleSym heavyFont">Pa</div><div class="eleNm"id="protactinium"></div><div class="eleWt">231.03588</div></a><td id="ele92"class="eleTD"><a href="element.html?num=92"id="element92"class="elements actinides r7"><div class="eleNum">92</div><div class="eleSym heavyFont">U</div><div class="eleNm"id="uranium"></div><div class="eleWt">238.02891</div></a><td id="ele93"class="eleTD"><a href="element.html?num=93"id="element93"class="elements actinides r7"><div class="eleNum">93</div><div class="eleSym heavyFont">Np</div><div class="eleNm"id="neptunium"></div><div class="eleWt">[237]</div></a><td id="ele94"class="eleTD"><a href="element.html?num=94"id="element94"class="elements actinides r7"><div class="eleNum">94</div><div class="eleSym heavyFont">Pu</div><div class="eleNm"id="plutonium"></div><div class="eleWt">[244]</div></a><td id="ele95"class="eleTD"><a href="element.html?num=95"id="element95"class="elements actinides r7"><div class="eleNum">95</div><div class="eleSym heavyFont">Am</div><div class="eleNm"id="americium"></div><div class="eleWt">[243]</div></a><td id="ele96"class="eleTD"><a href="element.html?num=96"id="element96"class="elements actinides r7"><div class="eleNum">96</div><div class="eleSym heavyFont">Cm</div><div class="eleNm"id="curium"></div><div class="eleWt">[247]</div></a><td id="ele97"class="eleTD"><a href="element.html?num=97"id="element97"class="elements actinides r7"><div class="eleNum">97</div><div class="eleSym heavyFont">Bk</div><div class="eleNm"id="berkelium"></div><div class="eleWt">[247]</div></a><td id="ele98"class="eleTD"><a href="element.html?num=98"id="element98"class="elements actinides r7"><div class="eleNum">98</div><div class="eleSym heavyFont">Cf</div><div class="eleNm"id="californium"></div><div class="eleWt">[251]</div></a><td id="ele99"class="eleTD"><a href="element.html?num=99"id="element99"class="elements actinides r7"><div class="eleNum">99</div><div class="eleSym heavyFont">Es</div><div class="eleNm"id="einsteinium"></div><div class="eleWt">[252]</div></a><td id="ele100"class="eleTD"><a href="element.html?num=100"id="element100"class="elements actinides r7"><div class="eleNum">100</div><div class="eleSym heavyFont">Fm</div><div class="eleNm"id="fermium"></div><div class="eleWt">[257]</div></a><td id="ele101"class="eleTD"><a href="element.html?num=101"id="element101"class="elements actinides r7"><div class="eleNum">101</div><div class="eleSym heavyFont">Md</div><div class="eleNm"id="mendelevium"></div><div class="eleWt">[258]</div></a><td id="ele102"class="eleTD"><a href="element.html?num=102"id="element102"class="elements actinides r7"><div class="eleNum">102</div><div class="eleSym heavyFont">No</div><div class="eleNm"id="nobelium"></div><div class="eleWt">[259]</div></a><td id="ele103"class="eleTD"><a href="element.html?num=103"id="element103"class="elements actinides r7"><div class="eleNum">103</div><div class="eleSym heavyFont">Lr</div><div class="eleNm"id="lawrencium"></div><div class="eleWt">[262]</div></a><tr><td class="gap"><tr><td><td colspan="18"><div class="flex text-center margin-bottom-20 width-100"><div id="ctg1"class="flex-auto category alkaliMetals unselectable"></div><div id="ctg2"class="flex-auto category alkalineEarthMetals unselectable"></div><div id="ctg3"class="flex-auto category transitionMetals unselectable"></div><div id="ctg4"class="flex-auto category postTransitionMetals unselectable"></div><div id="ctg5"class="flex-auto category otherNonmetals unselectable"></div><div id="ctg6"class="flex-auto category metalloids unselectable"></div><div id="ctg7"class="flex-auto category halogens unselectable"></div><div id="ctg8"class="flex-auto category nobleGases unselectable"></div><div id="ctg9"class="flex-auto category lanthanides unselectable"></div><div id="ctg10"class="flex-auto category actinides unselectable"></div></div><tr></table></div><div id="footer"></div><div class="modal fade"id="settingsModal"tabindex="-1"role="dialog"aria-labelledby="modalSettings"aria-hidden="true"></div><script>loadjs=function(){function e(e,n){var 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