NEET Chemistry
Potassium: electronic configuration and properties
Potassium has atomic number 19 and electronic configuration [Ar] 4s1. Explore its periodic behaviour and open the interactive atom model.
Open Potassium in 3DKey properties of Potassium
- Symbol
- K
- Atomic number
- 19
- Atomic mass
- 39.0983(1)
- Family
- alkali metal
- Electronic configuration
- [Ar] 4s1
- Shell distribution
- 2, 8, 8, 1
- Oxidation states
- 1
- Standard state
- solid
Periodic behaviour
Atomic radius: 196 pm. Electronegativity: 0.82. First ionisation energy: 419 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 Potassium.
Related alkali metal elements
Frequently asked questions
What is the electronic configuration of Potassium?
Potassium has electronic configuration [Ar] 4s1, with shell distribution 2, 8, 8, 1.
What are the oxidation states of Potassium?
The listed oxidation states are 1.
How can I view the Potassium atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.