Table of the most used elements with their atomic mass, Pauling electronegativity and usual oxidation states.
| Z | Symbol | Element | Atomic mass (u) | Electronegativity (Pauling) | Usual oxidation states |
|---|---|---|---|---|---|
| 1 | H | Hydrogen | 1.008 | 2.20 | −1, +1 |
| 2 | He | Helium | 4.0026 | — | 0 |
| 3 | Li | Lithium | 6.94 | 0.98 | +1 |
| 6 | C | Carbon | 12.011 | 2.55 | −4, −3, −2, −1, 0, +1, +2, +3, +4 |
| 7 | N | Nitrogen | 14.007 | 3.04 | −3, +3, +5 |
| 8 | O | Oxygen | 15.999 | 3.44 | −2 |
| 9 | F | Fluorine | 18.9984 | 3.98 | −1 |
| 10 | Ne | Neon | 20.1797 | — | 0 |
| 11 | Na | Sodium | 22.9898 | 0.93 | +1 |
| 12 | Mg | Magnesium | 24.305 | 1.31 | +2 |
| 13 | Al | Aluminum | 26.9815 | 1.61 | +3 |
| 14 | Si | Silicon | 28.085 | 1.90 | +4 |
| 15 | P | Phosphorus | 30.9738 | 2.19 | −3, +3, +5 |
| 16 | S | Sulfur | 32.06 | 2.58 | −2, +2, +4, +6 |
| 17 | Cl | Chlorine | 35.45 | 3.16 | −1, +1, +3, +5, +7 |
| 18 | Ar | Argon | 39.95 | — | 0 |
| 19 | K | Potassium | 39.0983 | 0.82 | +1 |
| 20 | Ca | Calcium | 40.078 | 1.00 | +2 |
| 22 | Ti | Titanium | 47.867 | 1.54 | +2, +3, +4 |
| 24 | Cr | Chromium | 51.9961 | 1.66 | +2, +3, +6 |
| 25 | Mn | Manganese | 54.938 | 1.55 | +2, +3, +4, +6, +7 |
| 26 | Fe | Iron | 55.845 | 1.83 | +2, +3 |
| 27 | Co | Cobalt | 58.9332 | 1.88 | +2, +3 |
| 28 | Ni | Nickel | 58.6934 | 1.91 | +2 |
| 29 | Cu | Copper | 63.546 | 1.90 | +1, +2 |
| 30 | Zn | Zinc | 65.38 | 1.65 | +2 |
| 35 | Br | Bromine | 79.904 | 2.96 | −1, +1, +3, +5 |
| 47 | Ag | Silver | 107.868 | 1.93 | +1 |
| 50 | Sn | Tin | 118.71 | 1.96 | +2, +4 |
| 53 | I | Iodine | 126.904 | 2.66 | −1, +1, +3, +5, +7 |
| 78 | Pt | Platinum | 195.084 | 2.28 | +2, +4 |
| 79 | Au | Gold | 196.967 | 2.54 | +1, +3 |
| 80 | Hg | Mercury | 200.592 | 2.00 | +1, +2 |
| 82 | Pb | Lead | 207.2 | — | +2, +4 |
| 92 | U | Uranium | 238.029 | 1.38 | +4, +6 |
From the page's periodic table: each value has its source in the element card (click the name). Usual oxidation states per Wikidata (preferred rank); He, Ne and Ar have no Pauling electronegativity.
Source: Simuveliq periodic table (Wikidata CC0 and the references cited in each card).
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