Neon vs Xenon
| Property | Ne Neon | Xe Xenon |
|---|---|---|
| Atomic number | 10 | 54 |
| Symbol | Ne | Xe |
| Name | Neon | Xenon |
| Category | noble-gas | noble-gas |
| Standard Atomic Weight | 20.1797 u | 131.293 u |
| Period | 2 | 5 |
| Group | 18 | 18 |
| Block | p | p |
| Phase at STP | gas | gas |
| Electron configuration | [He]2s22p6 | [Kr]5s24d105p6 |
| Oxidation states | [0] | [0, 2, 4, 6, 8] |
| Electronegativity (Pauling) | N/A | 2.6 |
| Electron affinity | -1.2 eV | -0.8 eV |
| Density | 0.8999 kg/m³ | 5.887 kg/m³ |
| Melting point | -248.59 °C | -111.79 °C |
| Boiling point | -246.05 °C | -108.1 °C |
| Discovery year | 1898 | 1898 |