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| Atomic No. | Symbol | Name | Atomic Weight |
|---|
| 1 | H | Hydrogen | 1.00794 |
| 2 | He | Helium | 4.002602 |
| 3 | Li | Lithium | 6.941 |
| 4 | Be | Beryllium | 9.012182 |
| 5 | B | Boron | 10.811 |
| 6 | C | Carbon | 12.0107 |
| 7 | N | Nitrogen | 14.0067 |
| 8 | O | Oxygen | 15.9994 |
| 9 | F | Fluorine | 18.9984032 |
| 10 | Ne | Neon | 20.1797 |
| 11 | Na | Sodium | 22.98977 |
| 12 | Mg | Magnesium | 24.305 |
| 13 | Al | Aluminium | 26.981538 |
| 14 | Si | Silicon | 28.0855 |
| 15 | P | Phosphorus | 30.973761 |
| 16 | S | Sulfur | 32.065 |
| 17 | Cl | Chlorine | 35.453 |
| 18 | Ar | Argon | 39.948 |
| 19 | K | Potassium | 39.0983 |
| 20 | Ca | Calcium | 40.078 |
| 21 | Sc | Scandium | 44.95591 |
| 22 | Ti | Titanium | 47.867 |
| 23 | V | Vanadium | 50.9415 |
| 24 | Cr | Chromium | 51.9961 |
| 25 | Mn | Manganese | 54.938049 |
| 26 | Fe | Iron | 55.845 |
| 27 | Co | Cobalt | 58.9332 |
| 28 | Ni | Nickel | 58.6934 |
| 29 | Cu | Copper | 63.546 |
| 30 | Zn | Zinc | 65.409 |
| 31 | Ga | Gallium | 69.723 |
| 32 | Ge | Germanium | 72.64 |
| 33 | As | Arsenic | 74.9216 |
| 34 | Se | Selenium | 78.96 |
| 35 | Br | Bromine | 79.904 |
| 36 | Kr | Krypton | 83.798 |
| 37 | Rb | Rubidium | 85.4678 |
| 38 | Sr | Strontium | 87.62 |
| 39 | Y | Yttrium | 88.90585 |
| 40 | Zr | Zirconium | 91.224 |
| 41 | Nb | Niobium | 92.90638 |
| 42 | Mo | Molybdenum | 95.94 |
| 43 | Tc | Technetium | 98 |
| 44 | Ru | Ruthenium | 101.07 |
| 45 | Rh | Rhodium | 102.9055 |
| 46 | Pd | Palladium | 106.42 |
| 47 | Ag | Silver | 107.8682 |
| 48 | Cd | Cadmium | 112.411 |
| 49 | In | Indium | 114.818 |
| 50 | Sn | Tin | 118.71 |
| 51 | Sb | Antimony | 121.76 |
| 52 | Te | Tellurium | 127.6 |
| 53 | I | Iodine | 126.90447 |
| 54 | Xe | Xenon | 131.293 |
| 55 | Cs | Cesium | 132.90545 |
| 56 | Ba | Barium | 137.327 |
| 57 | La | Lanthanum | 138.9055 |
| 58 | Ce | Cerium | 140.116 |
| 59 | Pr | Praseodymium | 140.90765 |
| 60 | Nd | Neodymium | 144.24 |
| 61 | Pm | Promethium | 145 |
| 62 | Sm | Samarium | 150.36 |
| 63 | Eu | Europium | 151.964 |
| 64 | Gd | Gadolinium | 157.25 |
| 65 | Tb | Terbium | 158.92534 |
| 66 | Dy | Dysprosium | 162.5 |
| 67 | Ho | Holmium | 164.93032 |
| 68 | Er | Erbium | 167.259 |
| 69 | Tm | Thulium | 168.93421 |
| 70 | Yb | Ytterbium | 173.04 |
| 71 | Lu | Lutetium | 174.967 |
| 72 | Hf | Hafnium | 178.49 |
| 73 | Ta | Tantalum | 180.9479 |
| 74 | W | Tungsten | 183.84 |
| 75 | Re | Rhenium | 186.207 |
| 76 | Os | Osmium | 190.23 |
| 77 | Ir | Iridium | 192.217 |
| 78 | Pt | Platinum | 195.078 |
| 79 | Au | Gold | 196.96655 |
| 80 | Hg | Mercury | 200.59 |
| 81 | Tl | Thallium | 204.3833 |
| 82 | Pb | Lead | 207.2 |
| 83 | Bi | Bismuth | 208.98038 |
| 84 | Po | Polonium | 209 |
| 85 | At | Astatine | 210 |
| 86 | Rn | Radon | 222 |
| 87 | Fr | Francium | 223 |
| 88 | Ra | Radium | 226 |
| 89 | Ac | Actinium | 227 |
| 90 | Th | Thorium | 232.0381 |
| 91 | Pa | Protactinium | 231.03588 |
| 92 | U | Uranium | 238.02891 |
| 93 | Np | Neptunium | 237 |
| 94 | Pu | Plutonium | 244 |
| 95 | Am | Americium | 243 |
| 96 | Cm | Curium | 247 |
| 97 | Bk | Berkelium | 247 |
| 98 | Cf | Californium | 251 |
| 99 | Es | Einsteinium | 252 |
| 100 | Fm | Fermium | 257 |
| 101 | Md | Mendelevium | 258 |
| 102 | No | Nobelium | 259 |
| 103 | Lr | Lawrencium | 262 |
| 104 | Rf | Rutherfordium | 261 |
| 105 | Db | Dubnium | 262 |
| 106 | Sg | Seaborgium | 266 |
| 107 | Bh | Bohrium | 264 |
| 108 | Hs | Hassium | 277 |
| 109 | Mt | Meitnerium | 268 |
| 110 | Ds | Darmstadtium | 281 |
| 111 | Rg | Roentgenium | 272 |
| 112 | Cn | Copernicium | 285 |
| 113 | Nh | Nihonium | 284 |
| 114 | Fl | Flerovium | 289 |
| 115 | Mc | Moscovium | 288 |
| 116 | Lv | Livermorium | 292 |
| 117 | Ts | Tennessine | 294 |
| 118 | Og | Oganesson | 294 |
