Cobalt vs Nihonium
| Property | Co Cobalt | Nh Nihonium |
|---|---|---|
| Atomic number | 27 | 113 |
| Symbol | Co | Nh |
| Name | Cobalt | Nihonium |
| Category | transition-metal | post-transition-metal |
| Standard Atomic Weight | 58.933194 u | 286 u |
| Period | 4 | 7 |
| Group | 9 | 13 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [Ar]4s23d7 | [Rn] 5f14 6d10 7s2 7p1(predicted) |
| Oxidation states | [-3, -1, 0, 1, 2, 3, 4, 5] | N/A |
| Electronegativity (Pauling) | 1.88 | N/A |
| Electron affinity | 0.661 eV | 0.6 eV |
| Density | 8860 kg/m³ | 1.600000e+4 kg/m³ |
| Melting point | 1494.85 °C | 426.85 °C |
| Boiling point | 2926.85 °C | 1156.85 °C |
| Discovery year | 1735 | 2004 |