Krypton vs Nihonium
| Property | Kr Krypton | Nh Nihonium |
|---|---|---|
| Atomic number | 36 | 113 |
| Symbol | Kr | Nh |
| Name | Krypton | Nihonium |
| Category | noble-gas | post-transition-metal |
| Standard Atomic Weight | 83.798 u | 286 u |
| Period | 4 | 7 |
| Group | 18 | 13 |
| Block | p | p |
| Phase at STP | gas | solid |
| Electron configuration | [Ar]4s23d104p6 | [Rn] 5f14 6d10 7s2 7p1(predicted) |
| Oxidation states | [0, 1, 2] | N/A |
| Electronegativity (Pauling) | 3 | N/A |
| Electron affinity | -1 eV | 0.6 eV |
| Density | 3.733 kg/m³ | 1.600000e+4 kg/m³ |
| Melting point | -157.36 °C | 426.85 °C |
| Boiling point | -153.42 °C | 1156.85 °C |
| Discovery year | 1898 | 2004 |