Potassium vs Nihonium
| Property | K Potassium | Nh Nihonium |
|---|---|---|
| Atomic number | 19 | 113 |
| Symbol | K | Nh |
| Name | Potassium | Nihonium |
| Category | alkali-metal | post-transition-metal |
| Standard Atomic Weight | 39.0983 u | 286 u |
| Period | 4 | 7 |
| Group | 1 | 13 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [Ar]4s1 | [Rn] 5f14 6d10 7s2 7p1(predicted) |
| Oxidation states | [-1, 1] | N/A |
| Electronegativity (Pauling) | 0.82 | N/A |
| Electron affinity | 0.5014 eV | 0.6 eV |
| Density | 890 kg/m³ | 1.600000e+4 kg/m³ |
| Melting point | 63.38 °C | 426.85 °C |
| Boiling point | 758.85 °C | 1156.85 °C |
| Discovery year | 1807 | 2004 |