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Atomic Weight of Elements
Atomic Number | Atomic Element | Symbol | Weight |
| 1 | Hydrogen | H | 1.00794 |
| 2 | Helium | He | 4.002602 |
| 3 | Lithium | Li | 6.941 |
| 4 | Beryllium | Be | 9.012182 |
| 5 | Boron | B | 10.811 |
| 6 | Carbon | C | 12.011 |
| 7 | Nitrogen | N | 14.00674 |
| 8 | Oxygen | O | 15.9994 |
| 9 | Fluorine | F | 18.9984032 |
| 10 | Neon | Ne | 20.1797 |
| 11 | Sodium | Na | 22.989768 |
| 12 | Magnesium | Mg | 24.3050 |
| 13 | Aluminum | Al | 26.981539 |
| 14 | Silicon | Si | 28.0855 |
| 15 | Phosphorus | P | 30.973762 |
| 16 | Sulfur | S | 32.066 |
| 17 | Chlorine | Cl | 35.4527 |
| 18 | Argon | Ar | 39.948 |
| 19 | Potassium | K | 39.0983 |
| 20 | Calcium | Ca | 40.078 |
| 21 | Scandium | Sc | 44.955910 |
| 22 | Titanium | Ti | 47.88 |
| 23 | Vanadium | V | 50.9415 |
| 24 | Chromium | Cr | 51.9961 |
| 25 | Manganese | Mn | 54.93805 |
| 26 | Iron | Fe | 55.847 |
| 27 | Cobalt | Co | 58.93320 |
| 28 | Nickel | Ni | 58.69 |
| 29 | Copper | Cu | 63.546 |
| 30 | Zinc | Zn | 65.39 |
| 31 | Gallium | Ga | 69.723 |
| 32 | Germanium | Ge | 72.61 |
| 33 | Arsenic | As | 74.92159 |
| 34 | Selenium | Se | 78.96 |
| 35 | Bromine | Br | 79.904 |
| 36 | Krypton | Kr | 83.80 |
| 37 | Rubidium | Rb | 85.4678 |
| 38 | Strontium | Sr | 87.62 |
| 39 | Yttrium | Y | 88.90585 |
| 40 | Zirconium | Zr | 91.224 |
| 41 | Niobium | Nb | 92.90638 |
| 42 | Molybdenum | Mo | 95.94 |
| 43 | Technetium | Tc | 97.9072* |
| 44 | Ruthenium | Ru | 101.07 |
| 45 | Rhodium | Rh | 102.90550 |
| 46 | Palladium | Pd | 106.42 |
| 47 | Silver | Ag | 107.8682 |
| 48 | Cadmium | Cd | 112.411 |
| 49 | Indium | In | 114.82 |
| 50 | Tin | Sn | 118.710 |
| 51 | Antimony | Sb | 121.75 |
| 52 | Tellurium | Te | 127.60 |
| 53 | Iodine | I | 126.90447 |
| 54 | Xenon | Xe | 131.29 |
| 55 | Cesium | Cs | 132.90543 |
| 56 | Barium | Ba | 137.327 |
| 57 | Lanthanum | La | 138.9055 |
| 58 | Cerium | Ce | 140.115 |
| 59 | Praseodymium | Pr | 140.90765 |
| 60 | Neodymium | Nd | 144.24 |
| 61 | Promethium | Pm | 144.9127* |
| 62 | Samarium | Sm | 150.36 |
| 63 | Europium | Eu | 151.965 |
| 64 | Gadolinium | Gd | 157.25 |
| 65 | Terbium | Tb | 158.92534 |
| 66 | Dysprosium | Dy | 162.50 |
| 67 | Holmium | Ho | 164.93032 |
| 68 | Erbium | Er | 167.26 |
| 69 | Thulium | Tm | 168.93421 |
| 70 | Ytterbium | Yb | 173.04 |
| 71 | Lutetium | Lu | 174.967 |
| 72 | Hafnium | Hf | 178.49 |
| 73 | Tantalum | Ta | 180.9479 |
| 74 | Tungsten | W | 183.85 |
| 75 | Rhenium | Re | 186.207 |
| 76 | Osmium | Os | 190.2 |
| 77 | Iridium | Ir | 192.22 |
| 78 | Platinum | Pt | 195.08 |
| 79 | Gold | Au | 196.96654 |
| 80 | Mercury | Hg | 200.59 |
| 81 | Thallium | Tl | 204.3833 |
| 82 | Lead | Pb | 207.2 |
| 83 | Bismuth | Bi | 208.98037 |
| 84 | Polonium | Po | 208.9824* |
| 85 | Astatine | At | 209.9871* |
| 86 | Radon | Rn | 222.0176* |
| 87 | Francium | Fr | 223.0197* |
| 88 | Radium | Ra | 226.0254* |
| 89 | Actinium | Ac | 227.0278* |
| 90 | Thorium | Th | 232.0381 |
| 91 | Protactinium | Pa | 231.0359* |
| 92 | Uranium | U | 238.0289 |
| 93 | Neptunium | Np | 237.0482* |
| 94 | Plutonium | Pu | 244.0642* |
| 95 | Americium | Am | 243.0614* |
| 96 | Curium | Cm | 247.0703* |
| 97 | Berkelium | Bk | 247.0703* |
| 98 | Californium | Cf | 251.0796* |
| 99 | Einsteinium | Es | 252.083* |
| 100 | Fermium | Fm | 257.0951* |
| 101 | Mendelevium | Md | 258.10* |
| 102 | Nobelium | No | 259.1009* |
| 103 | Lawrencium | Lr | 262.11* |
| 104 | Unnilquadium | Unq | 261.11* |
| 105 | Unnilpentium | Unp | 262.114* |
| 106 | Unnilhexium | Unh | 263.118* |
| 107 | Unnilseptium | Uns | 262.12* |
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