NEET Chemistry
Barium: electronic configuration and properties
Barium has atomic number 56 and electronic configuration [Xe] 6s2. Explore its periodic behaviour and open the interactive atom model.
Open Barium in 3DKey properties of Barium
- Symbol
- Ba
- Atomic number
- 56
- Atomic mass
- 137.327(7)
- Family
- alkaline earth metal
- Electronic configuration
- [Xe] 6s2
- Shell distribution
- 2, 8, 18, 18, 8, 2
- Oxidation states
- 2
- Standard state
- solid
Periodic behaviour
Atomic radius: 198 pm. Electronegativity: 0.89. First ionisation energy: 503 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 Barium.
Related alkaline earth metal elements
Frequently asked questions
What is the electronic configuration of Barium?
Barium has electronic configuration [Xe] 6s2, with shell distribution 2, 8, 18, 18, 8, 2.
What are the oxidation states of Barium?
The listed oxidation states are 2.
How can I view the Barium atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.