Identity
- Name: Krypton
- Symbol: Kr
- Atomic number: 36
- Atomic mass: 83.798 u
Position in the periodic table
- Group: 18
- Period: 4
- Category: Noble gas
Physico-chemical properties
- Standard state: Gas
- Melting point: −157.36°C
- Boiling point: −153.22°C
- Density: 0.003749 g/cm³
- Electron configuration: [Ar] 3d¹⁰ 4s² 4p⁶
Scientific description
Krypton is a chemical element with symbol Kr and atomic number 36. It belongs to the noble gases and sits in group 18, period 4.