| 1A | 8A |
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1 | | Periodic table of the elements | | | | | 2 |
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| 1 | H | | | | | | He |
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1.008 | 2A | | | | | | | | | | | 3A | 4A | 5A | 6A | 7A | 4.003 |
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3 | 4 | | | | | | | | | | | 5 | 6 | 7 | 8 | 9 | 10 |
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| 2 | Li | Be | | | | | | | | | | | B | C | N | O | F | Ne |
6.941 | 9.012 | | | | | | = metalloid | | | | 10.81 | 12.01 | 14.01 | 16.00 | 19.00 | 20.18 |
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11 | 12 | | | | | | | | | | | 13 | 14 | 15 | 16 | 17 | 18 |
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| 3 | Na | Mg | | | | | | | | | | | Al | Si | P | S | Cl | Ar |
22.99 | 24.31 | 3B | 4B | 5B | 6B | 7B | 8B | 9B | 10B | 1B | 2B | 26.98 | 28.09 | 30.97 | 32.06 | 35.45 | 39.95 |
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19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 |
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| 4 | K | Ca | Sc | Ti | V | Cr | Mn | Fe | Co | Ni | Cu | Zn | Ga | Ge | As | Se | Br | Kr |
39.10 | 40.08 | 44.96 | 47.87 | 50.94 | 52.00 | 54.94 | 55.85 | 58.93 | 58.69 | 63.55 | 65.38 | 69.72 | 72.63 | 74.92 | 78.97 | 79.90 | 83.80 |
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37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 |
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| 5 | Rb | Sr | Y | Zr | Nb | Mo | Tc | Ru | Rh | Pd | Ag | Cd | In | Sn | Sb | Te | I | Xe |
85.47 | 87.62 | 88.91 | 91.22 | 92.91 | 95.95 | (98) | 101.1 | 102.9 | 106.4 | 107.9 | 112.4 | 114.8 | 118.7 | 121.8 | 127.6 | 126.9 | 131.3 |
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55 | 56 | 57 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 |
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| 6 | Cs | Ba | La* | Hf | Ta | W | Re | Os | Ir | Pt | Au | Hg | Tl | Pb | Bi | Po | At | Rn |
132.9 | 137.3 | 138.9 | 178.5 | 181.0 | 183.8 | 186.2 | 190.2 | 192.2 | 195.1 | 197.0 | 200.6 | 204.4 | 207.2 | 209.0 | (209) | (210) | (222) |
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87 | 88 | 89 | 104 | 105 | 106 | 107 | 108 | 109 | 110 | 111 | 112 | 113 | 114 | 115 | 116 | 117 | 118 |
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| 7 | Fr | Ra | Aca | Rf | Db | Sg | Bh | Hs | Mt | Ds | Rg | Cn | Nh | Fl | Mc | Lv | Ts | Og |
(223) | (226) | (227) | (261) | (262) | (263) | (264) | (265) | (268) | (271) | (272) | (285) | (284) | (289) | (288) | (293) | (294) | (294) |
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| | | | | | | | | | | | | | | | | | |
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| | | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | | |
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Lanthanides | Ce | Pr | Nd | Pm | Sm | Eu | Gd | Tb | Dy | Ho | Er | Tm | Yb | Lu | | |
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| | | 140.1 | 140.9 | 144.2 | (145) | 150.4 | 152.0 | 157.3 | 158.9 | 162.5 | 164.9 | 167.3 | 168.9 | 173.0 | 175.0 | | |
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| | | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | 99 | 100 | 101 | 102 | 103 | | |
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Actinides | Th | Pa | U | Np | Pu | Am | Cm | Bk | Cf | Es | Fm | Md | No | Lr | | |
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| | | 232.0 | 231.0 | 238.0 | (237) | (244) | (243) | (247) | (247) | (251) | (252) | (257) | (258) | (259) | (260) | | |
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