Krypton
Noble gas| Atomic number | 36 |
|---|---|
| Category | Noble gas |
| Atomic mass | 83.798 |
| Electron configuration | [Ar]3d¹⁰ 4s² 4p⁶ |
| Oxidation states | 0 |
| Electronegativity | 3 |
| Melting point | -157 °C |
| Boiling point | -153 °C |
| Density | 0.004 g/cm³ |
| Crystal structure | Face-centred cubic |
| Group | 18 |
| Period | 4 |
| Block | p |
| Discovered | 1,898 |
| Crustal abundance | 0 ppm |