Xenon vs Barium
| Property | Xe Xenon | Ba Barium |
|---|---|---|
| Atomic number | 54 | 56 |
| Symbol | Xe | Ba |
| Name | Xenon | Barium |
| Category | noble-gas | alkaline-earth-metal |
| Standard Atomic Weight | 131.293 u | 137.327 u |
| Period | 5 | 6 |
| Group | 18 | 2 |
| Block | p | s |
| Phase at STP | gas | solid |
| Electron configuration | [Kr]5s24d105p6 | [Xe]6s2 |
| Oxidation states | [0, 2, 4, 6, 8] | [1, 2] |
| Electronegativity (Pauling) | 2.6 | 0.89 |
| Electron affinity | -0.8 eV | 0.1447 eV |
| Density | 5.887 kg/m³ | 3620 kg/m³ |
| Melting point | -111.79 °C | 726.85 °C |
| Boiling point | -108.1 °C | 1896.85 °C |
| Discovery year | 1898 | 1808 |