Beryllium vs Nihonium
| Property | Be Beryllium | Nh Nihonium |
|---|---|---|
| Atomic number | 4 | 113 |
| Symbol | Be | Nh |
| Name | Beryllium | Nihonium |
| Category | alkaline-earth-metal | post-transition-metal |
| Standard Atomic Weight | 9.012183 u | 286 u |
| Period | 2 | 7 |
| Group | 2 | 13 |
| Block | s | p |
| Phase at STP | solid | solid |
| Electron configuration | [He]2s2 | [Rn] 5f14 6d10 7s2 7p1(predicted) |
| Oxidation states | [0, 1, 2] | N/A |
| Electronegativity (Pauling) | 1.57 | N/A |
| Electron affinity | -0.52 eV | 0.6 eV |
| Density | 1850 kg/m³ | 1.600000e+4 kg/m³ |
| Melting point | 1286.85 °C | 426.85 °C |
| Boiling point | 2470.85 °C | 1156.85 °C |
| Discovery year | 1797 | 2004 |