NEET Chemistry
Cesium: electronic configuration and properties
Cesium has atomic number 55 and electronic configuration [Xe] 6s1. Explore its periodic behaviour and open the interactive atom model.
Open Cesium in 3DKey properties of Cesium
- Symbol
- Cs
- Atomic number
- 55
- Atomic mass
- 132.9054519(2)
- Family
- alkali metal
- Electronic configuration
- [Xe] 6s1
- Shell distribution
- 2, 8, 18, 18, 8, 1
- Oxidation states
- 1
- Standard state
- solid
Periodic behaviour
Atomic radius: 225 pm. Electronegativity: 0.79. First ionisation energy: 376 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 Cesium.
Related alkali metal elements
Frequently asked questions
What is the electronic configuration of Cesium?
Cesium has electronic configuration [Xe] 6s1, with shell distribution 2, 8, 18, 18, 8, 1.
What are the oxidation states of Cesium?
The listed oxidation states are 1.
How can I view the Cesium atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.