Nitrogen vs Oxygen
Pick up to 3 elements and see how they stack up.
| Property | Nitrogen | Oxygen |
|---|---|---|
| Atomic number | 7 | 8 |
| Atomic mass | 14.007 | 15.999 |
| Electronegativity | 3.04 | 3.44 |
| Melting point | 63.15 K (-210 °C) | 54.36 K (-218.8 °C) |
| Boiling point | 77.36 K (-195.8 °C) | 90.19 K (-183 °C) |
| Density | 1.251 g/L | 1.429 g/L |
| Atomic radius | 155 pm | 152 pm |
| Ionization energy | 14.534 eV | 13.618 eV |
| Discovered | 1772 | 1774 |
| Category | Reactive nonmetal | Reactive nonmetal |
| State at room temp. | Gas | Gas |
| Block | p | p |
| Group | 15 | 16 |
| Period | 2 | 2 |
| Valence electrons | 5 | 6 |
| Common charges | −3 | −2 |
| Electron configuration | [He] 2s2 2p3 | [He] 2s2 2p4 |