Atomic weight for all elements in Chemistry
Here, is the list of atomic weights for all elements in Chemistry. It will help you in many things like calculating molar mass, percent composition, etc.
| Atomic Number | Symbol | Name | Atomic Weight (amu, g/mol) |
| 1 | H | Hydrogen | 1.00797 |
| 2 | He | Helium | 4.00260 |
| 3 | Li | Lithium | 6.941 |
| 4 | Be | Beryllium | 9.01218 |
| 5 | B | Boron | 10.81 |
| 6 | C | Carbon | 12.011 |
| 7 | N | Nitrogen | 14.0067 |
| 8 | O | Oxygen | 15.9994 |
| 9 | F | Fluorine | 18.998403 |
| 10 | Ne | Neon | 20.179 |
| 11 | Na | Sodium | 22.98977 |
| 12 | Mg | Magnesium | 24.305 |
| 13 | Al | Aluminum | 26.98154 |
| 14 | Si | Silicon | 28.0855 |
| 15 | P | Phosphorus | 30.97376 |
| 16 | S | Sulfur | 32.06 |
| 17 | Cl | Chlorine | 35.453 |
| 19 | K | Potassium | 39.0983 |
| 18 | Ar | Argon | 39.948 |
| 20 | Ca | Calcium | 40.08 |
| 21 | Sc | Scandium | 44.9559 |
| 22 | Ti | Titanium | 47.90 |
| 23 | V | Vanadium | 50.9415 |
| 24 | Cr | Chromium | 51.996 |
| 25 | Mn | Manganese | 54.9380 |
| 26 | Fe | Iron | 55.847 |
| 28 | Ni | Nickel | 58.70 |
| 27 | Co | Cobalt | 58.9332 |
| 29 | Cu | Copper | 63.546 |
| 30 | Zn | Zinc | 65.38 |
| 31 | Ga | Gallium | 69.72 |
| 32 | Ge | Germanium | 72.59 |
| 33 | As | Arsenic | 74.9216 |
| 34 | Se | Selenium | 78.96 |
| 35 | Br | Bromine | 79.904 |
| 36 | Kr | Krypton | 83.80 |
| 37 | Rb | Rubidium | 85.4678 |
| 38 | Sr | Strontium | 87.62 |
| 39 | Y | Yttrium | 88.9059 |
| 40 | Zr | Zirconium | 91.22 |
| 41 | Nb | Niobium | 92.9064 |
| 42 | Mo | Molybdenum | 95.94 |
| 43 | Tc | Technetium | (98) |
| 44 | Ru | Ruthenium | 101.07 |
| 45 | Rh | Rhodium | 102.9055 |
| 46 | Pd | Palladium | 106.4 |
| 47 | Ag | Silver | 107.868 |
| 48 | Cd | Cadmium | 112.41 |
| 49 | In | Indium | 114.82 |
| 50 | Sn | Tin | 118.69 |
| 51 | Sb | Antimony | 121.75 |
| 53 | I | Iodine | 126.9045 |
| 52 | Te | Tellurium | 127.60 |
| 54 | Xe | Xenon | 131.30 |
| 55 | Cs | Cesium | 132.9054 |
| 56 | Ba | Barium | 137.33 |
| 57 | La | Lanthanum | 138.9055 |
| 58 | Ce | Cerium | 140.12 |
| 59 | Pr | Praseodymium | 140.9077 |
| 60 | Nd | Neodymium | 144.24 |
| 61 | Pm | Promethium | (145) |
| 62 | Sm | Samarium | 150.4 |
| 63 | Eu | Europium | 151.96 |
| 64 | Gd | Gadolinium | 157.25 |
| 65 | Tb | Terbium | 158.9254 |
| 66 | Dy | Dysprosium | 162.50 |
| 67 | Ho | Holmium | 164.9304 |
| 68 | Er | Erbium | 167.26 |
| 69 | Tm | Thulium | 168.9342 |
| 70 | Yb | Ytterbium | 173.04 |
| 71 | Lu | Lutetium | 174.967 |
| 72 | Hf | Hafnium | 178.49 |
| 73 | Ta | Tantalum | 180.9479 |
| 74 | W | Tungsten | 183.85 |
| 75 | Re | Rhenium | 186.207 |
| 76 | Os | Osmium | 190.2 |
| 77 | Ir | Iridium | 192.22 |
| 78 | Pt | Platinum | 195.09 |
| 79 | Au | Gold | 196.9665 |
| 80 | Hg | Mercury | 200.59 |
| 81 | Tl | Thallium | 204.37 |
| 82 | Pb | Lead | 207.2 |
| 83 | Bi | Bismuth | 208.9804 |
| 84 | Po | Polonium | (209) |
| 85 | At | Astatine | (210) |
| 86 | Rn | Radon | (222) |
| 87 | Fr | Francium | (223) |
| 88 | Ra | Radium | 226.0254 |
| 89 | Ac | Actinium | 227.0278 |
| 91 | Pa | Protactinium | 231.0359 |
| 90 | Th | Thorium | 232.0381 |
| 93 | Np | Neptunium | 237.0482 |
| 92 | U | Uranium | 238.029 |
| 94 | Pu | Plutonium | (242) |
| 95 | Am | Americium | (243) |
| 97 | Bk | Berkelium | (247) |
| 96 | Cm | Curium | (247) |
| 102 | No | Nobelium | (250) |
| 98 | Cf | Californium | (251) |
| 99 | Es | Einsteinium | (252) |
| 108 | Hs | Hassium | (255) |
| 109 | Mt | Meitnerium | (256) |
| 100 | Fm | Fermium | (257) |
| 101 | Md | Mendelevium | (258) |
| 103 | Lr | Lawrencium | (260) |
| 104 | Rf | Rutherfordium | (261) |
| 107 | Bh | Bohrium | (262) |
| 105 | Db | Dubnium | (262) |
| 106 | Sg | Seaborgium | (263) |
| 110 | Uun | Ununnilium | (269) |
| 111 | Uuu | Unununium | (272) |
| 112 | Uub | Ununbiium | (277) |
| 113 | — | —— | ——— |
| 114 | Uuq | Ununquadium |
Reference
- Boudreaux, K. (n.d.). Atomic Structure and Mass. Angelo State University. [online] Available at: https://www.angelo.edu/faculty/kboudrea/periodic/structure_mass.htm [Accessed 02-10-2023].
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