NEET Chemistry
Sodium: electronic configuration and properties
Sodium has atomic number 11 and electronic configuration [Ne] 3s1. Explore its periodic behaviour and open the interactive atom model.
Open Sodium in 3DKey properties of Sodium
- Symbol
- Na
- Atomic number
- 11
- Atomic mass
- 22.98976928(2)
- Family
- alkali metal
- Electronic configuration
- [Ne] 3s1
- Shell distribution
- 2, 8, 1
- Oxidation states
- -1, 1
- Standard state
- solid
Periodic behaviour
Atomic radius: 154 pm. Electronegativity: 0.93. First ionisation energy: 496 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 Sodium.
Related alkali metal elements
Frequently asked questions
What is the electronic configuration of Sodium?
Sodium has electronic configuration [Ne] 3s1, with shell distribution 2, 8, 1.
What are the oxidation states of Sodium?
The listed oxidation states are -1, 1.
How can I view the Sodium atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.