Xenon vs Meitnerium
| Property | Xe Xenon | Mt Meitnerium |
|---|---|---|
| Atomic number | 54 | 109 |
| Symbol | Xe | Mt |
| Name | Xenon | Meitnerium |
| Category | noble-gas | transition-metal |
| Standard Atomic Weight | 131.293 u | 278 u |
| Period | 5 | 7 |
| Group | 18 | 9 |
| Block | p | s |
| Phase at STP | gas | N/A |
| Electron configuration | [Kr]5s24d105p6 | [Rn]7s25f146d7(calculated) |
| Oxidation states | [0, 2, 4, 6, 8] | [1, 3, 4, 6, 8, 9] |
| Electronegativity (Pauling) | 2.6 | N/A |
| Electron affinity | -0.8 eV | 1.7 eV |
| Density | 5.887 kg/m³ | 3.740000e+4 kg/m³ |
| Melting point | -111.79 °C | -273.15 °C |
| Boiling point | -108.1 °C | -273.15 °C |
| Discovery year | 1898 | 1982 |