Krypton: electronic configuration and properties
Krypton has atomic number 36 and electronic configuration [Ar] 3d10 4s2 4p6. Explore its periodic behaviour and open the interactive atom model.
Open Krypton in 3DKey properties of Krypton
- Symbol
- Kr
- Atomic number
- 36
- Atomic mass
- 83.798(2)
- Family
- noble gas
- Electronic configuration
- [Ar] 3d10 4s2 4p6
- Shell distribution
- 2, 8, 18, 8
- Oxidation states
- 2
- Standard state
- gas
Periodic behaviour
Atomic radius: 110 pm. Electronegativity: not experimentally determined. First ionisation energy: 1351 kJ/mol. Use these values comparatively across a period or group rather than memorising them in isolation.
NEET exam focus
For NEET, prioritise the NCERT electronic configuration, periodic position, common oxidation states, and direct trend-based comparisons involving Krypton.
Related noble gas elements
Frequently asked questions
What is the electronic configuration of Krypton?
Krypton has electronic configuration [Ar] 3d10 4s2 4p6, with shell distribution 2, 8, 18, 8.
What are the oxidation states of Krypton?
The listed oxidation states are 2.
How can I view the Krypton atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.