TABLE OF CONTENTS | Name | Symbol | Atomic number % | International atomic weights [*] 1971 12C = 12 |
|---|---|---|---|
| Actinium | Ac | 89 | (227) |
| Aluminium | Al | 13 | 26.981 54 |
| Americium | Am | 95 | (243) |
| Antimony | Sb | 51 | 121.7 5 |
| Argon | Ar | 18 | 39.94 8 |
| Arsenic | As | 33 | 74.921 6 |
| Astatine | At | 85 | (210) |
| Barium | Ba | 56 | 137.3 4 |
| Berkelium | Bk | 97 | (247) |
| Beryllium | Be | 4 | 9.012 18 |
| Bismuth | Bi | 83 | 208.980 4 |
| Boron | B | 5 | 10.81 |
| Bromine | Br | 35 | 79.904 |
| Cadmium | Cd | 48 | 112.40 |
| Caesium | Cs | 55 | 132.905 4 |
| Calcium | Ca | 20 | 40.08 |
| Californium | Cf | 98 | (251) |
| Carbon | C | 6 | 12.011 |
| Cerium | Ce | 58 | 140.12 |
| Chlorine | Cl | 17 | 35.453 |
| Chromium | Cr | 24 | 51.996 |
| Cobalt | Co | 27 | 58.933 2 |
| Copper | Cu | 29 | 63.54 6 |
| Curium | Cm | 96 | (247) |
| Dysprosium | Dy | 66 | 162.5 0 |
| Einstenium | Es | 99 | (254) |
| Erbium | Er | 68 | 167.2 6 |
| Europium | Eu | 63 | 151.96 |
| Fermium | Fm | 100 | (257) |
| Fluorine | F | 9 | 18.998 40 |
| Francium | Fr | 87 | (223) |
| Gadolinium | Gd | 64 | 157.2 5 |
| Gallium | Ga | 31 | 69.72 |
| Germanium | Ge | 32 | 72.5 9 |
| Gold | Au | 79 | 196.966 5 |
| Hafnium | Hf | 72 | 178.4 9 |
| Helium | He | 2 | 4.002 60 |
| Holmium | Ho | 67 | 164.930 4 |
| Hydrogen | H | 1 | 1.007 9 |
| Indium | In | 49 | 114.82 |
| Iodine | I | 53 | 126.904 5 |
| Iridium | Ir | 77 | 192.2 2 |
| Iron | Fe | 26 | 55.84 7 |
| Krypton | Kr | 36 | 83.80 |
| Lanthanum | La | 57 | 138.905 5 |
| Lawrencium | Lr | 103 | (260) |
| Lead | Pb | 82 | 207.2 |
| Lithium | Li | 3 | 6.94 1 |
| Lutetium | Lu | 71 | 174.97 |
| Magnesium | Mg | 12 | 24.305 |
