Radon vs Copernicium
| Property | Rn Radon | Cn Copernicium |
|---|---|---|
| Atomic number | 86 | 112 |
| Symbol | Rn | Cn |
| Name | Radon | Copernicium |
| Category | noble-gas | transition-metal |
| Standard Atomic Weight | 222 u | 285 u |
| Period | 6 | 7 |
| Group | 18 | 12 |
| Block | p | s |
| Phase at STP | gas | gas |
| Electron configuration | [Xe]6s24f145d106p6 | [Rn] 7s2 5f14 6d10(predicted) |
| Oxidation states | [0, 2, 6] | [2, 4] |
| Electronegativity (Pauling) | N/A | N/A |
| Electron affinity | -0.7 eV | -0.8 eV |
| Density | 9.73 kg/m³ | 1.400000e+4 kg/m³ |
| Melting point | -71.15 °C | -273.15 °C |
| Boiling point | -61.7 °C | -165.15 °C |
| Discovery year | 1900 | 1996 |