| General |
|---|
| Name | Xenon | | Symbol | Xe | | Number | 54 | | Chemical series | Noble gases | | Group / Period | 18 / 5 | | Block | p-block | | CAS registry number | 7440-63-3 |
| Physical properties |
|---|
| State | gas | | Density | 5.894 g/L | | Melting point | 161.4 K (−111.7 °C, −169.1 °F) | | Boiling point | 165.03 K (−108.12 °C, −162.62 °F) | | Critical point | 289.77 K, 5.841 MPa |
| Atomic properties |
|---|
| Atomic Weight | 131.293 g/mol | | Crystal structure | cubic face centered | | Electronegativity | 2.60 | | Atomic radius | | | Atomic radius (calculated) | 108 pm | | Electron configuration | [Kr] 5s2 4d10 5p6 | | Electrons per shell | 2, 8, 18, 18, 8 | | Number of protons | 54 | | Number of neutrons | 77 |
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Caesium