Mendelevium vs Nihonium
| Property | Md Mendelevium | Nh Nihonium |
|---|---|---|
| Atomic number | 101 | 113 |
| Symbol | Md | Nh |
| Name | Mendelevium | Nihonium |
| Category | actinide | post-transition-metal |
| Standard Atomic Weight | 258 u | 286 u |
| Period | 7 | 7 |
| Group | N/A | 13 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [Rn]7s25f13 | [Rn] 5f14 6d10 7s2 7p1(predicted) |
| Oxidation states | [2, 3] | N/A |
| Electronegativity (Pauling) | 1.3 | N/A |
| Electron affinity | 0.997 eV | 0.6 eV |
| Density | 1.030000e+4 kg/m³ | 1.600000e+4 kg/m³ |
| Melting point | 826.85 °C | 426.85 °C |
| Boiling point | -273.15 °C | 1156.85 °C |
| Discovery year | 1955 | 2004 |