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Carbon
Reactive nonmetals · Group 14 · Period 2
Atomic properties
| Atomic number | 6 |
|---|---|
| Symbol | C |
| Standard atomic weight | 12.011 |
| Classification | Reactive nonmetals |
| Group | 14 |
| Period | 2 |
| Block | p-block |
| Electron configuration | [He] 2s2 2p2 |
| Electronegativity (Pauling) | 2.55 |
| Common oxidation states | +4, +2, -4 |
Physical properties
| Phase at 20 °C | Solid |
|---|---|
| Density | 2.267 g/cm³ |
| Melting point | 3550 °C |
| Boiling point | 4027 °C |
| Discovered | Ancient |
| CAS number | — |