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Carbon (C)
Atomic number 6 · Non-metal
| Atomic number | 6 |
|---|---|
| Atomic mass | 12.011 u |
| Molar mass | 12.011 g/mol |
| Category | Non-metal |
| Group / period / block | 14 / 2 / p |
| Electron configuration | [He] 2s2 2p2 |
| Electrons per shell | 2, 4 |
| Electronegativity (Pauling) | 2.55 |
| Atomic radius | 70.0 pm |
| Density | 2.2 g/cm³ |
| First ionisation energy | 11.2603 eV |
| Boiling point | 4098.15 K (3825.00 °C) |
| Common oxidation states | -4, +4 |
| Abundance in Earth's crust | 200 ppm |
Uses
Steel, fuels, plastics — basis of all life
Discovery
Known since ancient times