| Attribute | Value |
|---|---|
| Symbol | Kr |
| Standard state | Gas |
| Atomic mass | 83.8 u |
| Electron configuration | [Ar]4s²3d¹⁰4p⁶ |
| Oxidation states |
|
| Electronegativity (pauling scale) | 3 |
| Atomic radius (van der waals) | 202 pm |
| Ionization energy | 14 eV |
| Melting point | 115.79 K |
| Boiling point | 119.93 K |
| Density | 0.003733 g/cm³ |
| Atomic number | 36 |
| Group name | Noble gas |
| Discovered | 1898 year |
| Electron affinity | Add |