Carbon vs Oxygen
Pick up to 3 elements and see how they stack up.
| Property | Carbon | Oxygen |
|---|---|---|
| Atomic number | 6 | 8 |
| Atomic mass | 12.011 | 15.999 |
| Electronegativity | 2.55 | 3.44 |
| Melting point | 3,823 K (3,549.8 °C) | 54.36 K (-218.8 °C) |
| Boiling point | 4,098 K (3,824.8 °C) | 90.19 K (-183 °C) |
| Density | 2.267 g/cm³ | 1.429 g/L |
| Atomic radius | 170 pm | 152 pm |
| Ionization energy | 11.26 eV | 13.618 eV |
| Discovered | Ancient | 1774 |
| Category | Reactive nonmetal | Reactive nonmetal |
| State at room temp. | Solid | Gas |
| Block | p | p |
| Group | 14 | 16 |
| Period | 2 | 2 |
| Valence electrons | 4 | 6 |
| Common charges | +4, −4 | −2 |
| Electron configuration | [He] 2s2 2p2 | [He] 2s2 2p4 |