Hafnium vs Nihonium
| Property | Hf Hafnium | Nh Nihonium |
|---|---|---|
| Atomic number | 72 | 113 |
| Symbol | Hf | Nh |
| Name | Hafnium | Nihonium |
| Category | transition-metal | post-transition-metal |
| Standard Atomic Weight | 178.49 u | 286 u |
| Period | 6 | 7 |
| Group | 4 | 13 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [Xe]6s24f145d2 | [Rn] 5f14 6d10 7s2 7p1(predicted) |
| Oxidation states | [-2, 0, 1, 2, 3, 4] | N/A |
| Electronegativity (Pauling) | 1.3 | N/A |
| Electron affinity | 0.178 eV | 0.6 eV |
| Density | 1.330000e+4 kg/m³ | 1.600000e+4 kg/m³ |
| Melting point | 2232.85 °C | 426.85 °C |
| Boiling point | 4602.85 °C | 1156.85 °C |
| Discovery year | 1911 | 2004 |