Strontium vs Xenon
| Property | Sr Strontium | Xe Xenon |
|---|---|---|
| Atomic number | 38 | 54 |
| Symbol | Sr | Xe |
| Name | Strontium | Xenon |
| Category | alkaline-earth-metal | noble-gas |
| Standard Atomic Weight | 87.62 u | 131.293 u |
| Period | 5 | 5 |
| Group | 2 | 18 |
| Block | s | p |
| Phase at STP | solid | gas |
| Electron configuration | [Kr]5s2 | [Kr]5s24d105p6 |
| Oxidation states | [1, 2] | [0, 2, 4, 6, 8] |
| Electronegativity (Pauling) | 0.95 | 2.6 |
| Electron affinity | 0.052 eV | -0.8 eV |
| Density | 2640 kg/m³ | 5.887 kg/m³ |
| Melting point | 776.85 °C | -111.79 °C |
| Boiling point | 1381.85 °C | -108.1 °C |
| Discovery year | 1792 | 1898 |