Rhodium vs Radon
| Property | Rh Rhodium | Rn Radon |
|---|---|---|
| Atomic number | 45 | 86 |
| Symbol | Rh | Rn |
| Name | Rhodium | Radon |
| Category | transition-metal | noble-gas |
| Standard Atomic Weight | 102.9055 u | 222 u |
| Period | 5 | 6 |
| Group | 9 | 18 |
| Block | s | p |
| Phase at STP | solid | gas |
| Electron configuration | [Kr]5s14d8 | [Xe]6s24f145d106p6 |
| Oxidation states | [-3, -1, 1, 2, 3, 4, 5, 6, 7] | [0, 2, 6] |
| Electronegativity (Pauling) | 2.28 | N/A |
| Electron affinity | 1.137 eV | -0.7 eV |
| Density | 1.240000e+4 kg/m³ | 9.73 kg/m³ |
| Melting point | 1963.85 °C | -71.15 °C |
| Boiling point | 3694.85 °C | -61.7 °C |
| Discovery year | 1803 | 1900 |