Krypton vs Flerovium
| Property | Kr Krypton | Fl Flerovium |
|---|---|---|
| Atomic number | 36 | 114 |
| Symbol | Kr | Fl |
| Name | Krypton | Flerovium |
| Category | noble-gas | post-transition-metal |
| Standard Atomic Weight | 83.798 u | 289 u |
| Period | 4 | 7 |
| Group | 18 | 14 |
| Block | p | p |
| Phase at STP | gas | gas |
| Electron configuration | [Ar]4s23d104p6 | [Rn] 7s27p2 5f14 6d10(predicted) |
| Oxidation states | [0, 1, 2] | [0, 1, 2, 4, 6] |
| Electronegativity (Pauling) | 3 | N/A |
| Electron affinity | -1 eV | -0.5 eV |
| Density | 3.733 kg/m³ | 9928 kg/m³ |
| Melting point | -157.36 °C | -273.15 °C |
| Boiling point | -153.42 °C | -63.15 °C |
| Discovery year | 1898 | 1998 |