| Kr | Krypton | Noble Gas |
| Atomic number: | 36 | Atomic weight: | 83.80 | ||
| Shells: | 2,8,18,8 | Orbitals: | [Ar] 3d10 4s2 4p6 | ||
| Melting point: | -156.6°C | Boiling point: | -152.3°C | ||
| Covalent radius: | 1.12 | Å | Atomic volume: | 38.9 | cm³/mol |
| Atomic radius: | 1.03 | Å | Ionic radius: | -- | Å |
| Electronegativity: | 0 | Oxidation states: | |||
| 1st ionization pot.: | 13.9996 | V | 2nd ionization pot.: | 24.359 | V |
| 3rd ionization pot.: | 36.95 | V | Specific heat: | 0.248 | J/gK |
| Heat of fusion: | 1.638 | kJ/mol | Heat of vapor.: | 9.029 | kJ/mol |
| Thermal conduct.: | 0.0000949 | W/cmK | Electrical conduct.: | -- | 10^6/cm ohm |
| Density: | 0.003708 | g/cm³ | Valence: | 0 |