NEET Chemistry
Boron: electronic configuration and properties
Boron has atomic number 5 and electronic configuration [He] 2s2 2p1. Explore its periodic behaviour and open the interactive atom model.
Open Boron in 3DKey properties of Boron
- Symbol
- B
- Atomic number
- 5
- Atomic mass
- 10.811(7)
- Family
- metalloid
- Electronic configuration
- [He] 2s2 2p1
- Shell distribution
- 2, 3
- Oxidation states
- 1, 2, 3
- Standard state
- solid
Periodic behaviour
Atomic radius: 82 pm. Electronegativity: 2.04. First ionisation energy: 801 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 Boron.
Related metalloid elements
Frequently asked questions
What is the electronic configuration of Boron?
Boron has electronic configuration [He] 2s2 2p1, with shell distribution 2, 3.
What are the oxidation states of Boron?
The listed oxidation states are 1, 2, 3.
How can I view the Boron atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.