| Property | Value |
|---|---|
| Atomic number | 36 |
| Atomic weight | 83.7982 amu |
| Element family | Nobel gases |
| Electronic configuration | 1s2 |
| Stable and very long lived isotopes | 80Kr: 2.25%, 82Kr: 11.6%, 83Kr: 11.5%, 84Kr: 57.0%, 86Kr: 17.3% |
| Previous element | Bromine |
| Next element | Rubidium |
| Density | 0.003733 g/cm3 (STP) |
| Melting | -157.22 °C |
| Boiling | -152.3 °C |
| Covalent radius | 1.17 Å |
| Van der Waals radius | 2.02 Å |
| First ionization potential | 14.000 eV |
| Electron affinity | -1.000 eV |
| Electronegativity | 3 |
| Discovery year | 1898 |
| Sample compounds |
|---|
| KrF2 |
Krypton is an element number 36 from nobel gases family. Its symbol is Kr. Krypton atomic weight is 83.7982 amu. Kr stable and long lived isotopes are 80Kr: 2.25%, 82Kr: 11.6%, 83Kr: 11.5%, 84Kr: 57.0%, 86Kr: 17.3%. Krypton electronic configuration is 1s22s22p63s23p63d104s24p6. Sample compounds that contain Krypton are KrF2.
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