Boron vs Carbon
Pick up to 3 elements and see how they stack up.
| Property | Boron | Carbon |
|---|---|---|
| Atomic number | 5 | 6 |
| Atomic mass | 10.81 | 12.011 |
| Electronegativity | 2.04 | 2.55 |
| Melting point | 2,349 K (2,075.8 °C) | 3,823 K (3,549.8 °C) |
| Boiling point | 4,200 K (3,926.8 °C) | 4,098 K (3,824.8 °C) |
| Density | 2.34 g/cm³ | 2.267 g/cm³ |
| Atomic radius | 192 pm | 170 pm |
| Ionization energy | 8.298 eV | 11.26 eV |
| Discovered | 1808 | Ancient |
| Category | Metalloid | Reactive nonmetal |
| State at room temp. | Solid | Solid |
| Block | p | p |
| Group | 13 | 14 |
| Period | 2 | 2 |
| Valence electrons | 3 | 4 |
| Common charges | +3 | +4, −4 |
| Electron configuration | [He] 2s2 2p1 | [He] 2s2 2p2 |