1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
1
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1 H Hydrogen 1.00794

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2 He Helium 4.002602

2
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3 Li Lithium 6.9412

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4 Be Beryllium 9.0121823

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5 B Boron 10.8118

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6 C Carbon 12.01079

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7 N Nitrogen 14.00672

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8 O Oxygen 15.99943

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9 F Fluorine 18.99840325

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10 Ne Neon 20.17977

3
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11 Na Sodium 22.989769282

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12 Mg Magnesium 24.30507

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13 Al Aluminium 26.98153869

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14 Si Silicon 28.08553

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15 P Phosphorus 30.9737622

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16 S Sulfur 32.0655

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17 Cl Chlorine 35.4532

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18 Ar Argon 39.9481

4
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19 K Potassium 39.09831

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20 Ca Calcium 40.0784

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21 Sc Scandium 44.9559127

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22 Ti Titanium 47.8671

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23 V Vanadium 50.94151

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24 Cr Chromium 51.99617

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25 Mn Manganese 54.9380455

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26 Fe Iron 55.8452

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27 Co Cobalt 58.9331955

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28 Ni Nickel 58.69344

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29 Cu Copper 63.5463

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30 Zn Zinc 65.382

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31 Ga Gallium 69.7231

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32 Ge Germanium 72.641

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33 As Arsenic 74.921602

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34 Se Selenium 78.963

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35 Br Bromine 79.9041

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36 Kr Krypton 83.7982

5
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37 Rb Rubidium 85.46783

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38 Sr Strontium 87.621

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39 Y Yttrium 88.905852

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40 Zr Zirconium 91.2242

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41 Nb Niobium 92.906382

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42 Mo Molybdenum 95.962

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43 Tc Technetium [98]

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44 Ru Ruthenium 101.072

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45 Rh Rhodium 102.905502

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46 Pd Palladium 106.421

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47 Ag Silver 107.86822

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48 Cd Cadmium 112.4119

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49 In Indium 114.8183

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50 Sn Tin 118.7107

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51 Sb Antimony 121.7601

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52 Te Tellurium 127.603

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53 I Iodine 126.904473

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54 Xe Xenon 131.2936

6
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55 Cs Cesium 132.90545192

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56 Ba Barium 137.3277

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72 Hf Hafnium 178.492

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73 Ta Tantalum 180.947882

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74 W Tungsten 183.841

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75 Re Rhenium 186.2071

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76 Os Osmium 190.233

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77 Ir Iridium 192.2173

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78 Pt Platinum 195.0849

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79 Au Gold 196.9665694

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80 Hg Mercury 200.592

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81 Tl Thallium 204.38332

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82 Pb Lead 207.21

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83 Bi Bismuth 208.980401

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84 Po Polonium [209]

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85 At Astatine [210]

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86 Rn Radon [222]

7
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87 Fr Francium [223]

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88 Ra Radium [226]

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104 Rf Rutherfordium [267]

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105 Db Dubnium [268]

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106 Sg Seaborgium [271]

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107 Bh Bohrium [272]

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108 Hs Hassium [270]

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109 Mt Meitnerium [276]

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110 Ds Darmstadtium [281]

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111 Rg Roentgenium [280]

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112 Cn Copernicium [285]

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113 Uut Ununtrium [284]

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114 Uuq Ununquadium [289]

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115 Uup Ununpentium [288]

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116 Uuh Ununhexium [293]

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117 Uus Ununseptium [294]

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118 Uuo Ununoctium [294]

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57 La Lanthanum 138.905477

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58 Ce Cerium 140.1161

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59 Pr Praseodymium 140.907652

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60 Nd Neodymium 144.2423

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61 Pm Promethium [145]

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62 Sm Samarium 150.362

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63 Eu Europium 151.9641

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64 Gd Gadolinium 157.253

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65 Tb Terbium 158.925352

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66 Dy Dysprosium 162.5001

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67 Ho Holmium 164.930322

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68 Er Erbium 167.2593

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69 Tm Thulium 168.934212

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70 Yb Ytterbium 173.0545

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71 Lu Lutetium 174.96681

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89 Ac Actinium [227]

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90 Th Thorium 232.038062

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91 Pa Protactinium 231.035882

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92 U Uranium 238.028913

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93 Np Neptunium [237]

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94 Pu Plutonium [244]

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95 Am Americium [243]

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96 Cm Curium [247]

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97 Bk Berkelium [247]

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98 Cf Californium [251]

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99 Es Einsteinium [252]

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100 Fm Fermium [257]

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101 Md Mendelevium [258]

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102 No Nobelium [259]

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103 Lr Lawrencium [262]