Oxygen vs Rhodium
| Property | O Oxygen | Rh Rhodium |
|---|---|---|
| Atomic number | 8 | 45 |
| Symbol | O | Rh |
| Name | Oxygen | Rhodium |
| Category | nonmetal | transition-metal |
| Standard Atomic Weight | 15.9994 u | 102.9055 u |
| Period | 2 | 5 |
| Group | 16 | 9 |
| Block | p | s |
| Phase at STP | gas | solid |
| Electron configuration | [He]2s22p4 | [Kr]5s14d8 |
| Oxidation states | [-2, -1, 0, 1, 2] | [-3, -1, 1, 2, 3, 4, 5, 6, 7] |
| Electronegativity (Pauling) | 3.44 | 2.28 |
| Electron affinity | 1.4611 eV | 1.137 eV |
| Density | 1.429 kg/m³ | 1.240000e+4 kg/m³ |
| Melting point | -218.79 °C | 1963.85 °C |
| Boiling point | -182.95 °C | 3694.85 °C |
| Discovery year | 1771 | 1803 |