Potassium vs Germanium
| Property | K Potassium | Ge Germanium |
|---|---|---|
| Atomic number | 19 | 32 |
| Symbol | K | Ge |
| Name | Potassium | Germanium |
| Category | alkali-metal | metalloid |
| Standard Atomic Weight | 39.0983 u | 72.63 u |
| Period | 4 | 4 |
| Group | 1 | 14 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [Ar]4s1 | [Ar]4s23d104p2 |
| Oxidation states | [-1, 1] | [-4, -3, -2, -1, 0, 1, 2, 3, 4] |
| Electronegativity (Pauling) | 0.82 | 2.01 |
| Electron affinity | 0.5014 eV | 1.232 eV |
| Density | 890 kg/m³ | 5323.4 kg/m³ |
| Melting point | 63.38 °C | 938.25 °C |
| Boiling point | 758.85 °C | 2832.85 °C |
| Discovery year | 1807 | 1886 |