Beryllium vs Carbon
| Property | Be Beryllium | C Carbon |
|---|---|---|
| Atomic number | 4 | 6 |
| Symbol | Be | C |
| Name | Beryllium | Carbon |
| Category | alkaline-earth-metal | nonmetal |
| Standard Atomic Weight | 9.012183 u | 12.0106 u |
| Period | 2 | 2 |
| Group | 2 | 14 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [He]2s2 | [He]2s22p2 |
| Oxidation states | [0, 1, 2] | [-4, -3, -2, -1, 0, 1, 2, 3, 4] |
| Electronegativity (Pauling) | 1.57 | 2.55 |
| Electron affinity | -0.52 eV | 1.2621 eV |
| Density | 1850 kg/m³ | 2267 kg/m³ |
| Melting point | 1286.85 °C | 3549.85 °C |
| Boiling point | 2470.85 °C | 3824.85 °C |
| Discovery year | 1797 | 1797 |