Carbon vs Potassium
| Property | C Carbon | K Potassium |
|---|---|---|
| Atomic number | 6 | 19 |
| Symbol | C | K |
| Name | Carbon | Potassium |
| Category | nonmetal | alkali-metal |
| Standard Atomic Weight | 12.0106 u | 39.0983 u |
| Period | 2 | 4 |
| Group | 14 | 1 |
| Block | p | s |
| Phase at STP | solid | solid |
| Electron configuration | [He]2s22p2 | [Ar]4s1 |
| Oxidation states | [-4, -3, -2, -1, 0, 1, 2, 3, 4] | [-1, 1] |
| Electronegativity (Pauling) | 2.55 | 0.82 |
| Electron affinity | 1.2621 eV | 0.5014 eV |
| Density | 2267 kg/m³ | 890 kg/m³ |
| Melting point | 3549.85 °C | 63.38 °C |
| Boiling point | 3824.85 °C | 758.85 °C |
| Discovery year | 1797 | 1807 |