Xenon vs Polonium
| Property | Xe Xenon | Po Polonium |
|---|---|---|
| Atomic number | 54 | 84 |
| Symbol | Xe | Po |
| Name | Xenon | Polonium |
| Category | noble-gas | metalloid |
| Standard Atomic Weight | 131.293 u | 209 u |
| Period | 5 | 6 |
| Group | 18 | 16 |
| Block | p | p |
| Phase at STP | gas | solid |
| Electron configuration | [Kr]5s24d105p6 | [Xe]6s24f145d106p4 |
| Oxidation states | [0, 2, 4, 6, 8] | [-2, 2, 4, 5, 6] |
| Electronegativity (Pauling) | 2.6 | 2 |
| Electron affinity | -0.8 eV | 1.9 eV |
| Density | 5.887 kg/m³ | 9320 kg/m³ |
| Melting point | -111.79 °C | 253.85 °C |
| Boiling point | -108.1 °C | 961.85 °C |
| Discovery year | 1898 | 1898 |