NEET Chemistry
Bromine: electronic configuration and properties
Bromine has atomic number 35 and electronic configuration [Ar] 3d10 4s2 4p5. Explore its periodic behaviour and open the interactive atom model.
Open Bromine in 3DKey properties of Bromine
- Symbol
- Br
- Atomic number
- 35
- Atomic mass
- 79.904(1)
- Family
- halogen
- Electronic configuration
- [Ar] 3d10 4s2 4p5
- Shell distribution
- 2, 8, 18, 7
- Oxidation states
- -1, 1, 3, 4, 5, 7
- Standard state
- liquid
Periodic behaviour
Atomic radius: 114 pm. Electronegativity: 2.96. First ionisation energy: 1140 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 Bromine.
Related halogen elements
Frequently asked questions
What is the electronic configuration of Bromine?
Bromine has electronic configuration [Ar] 3d10 4s2 4p5, with shell distribution 2, 8, 18, 7.
What are the oxidation states of Bromine?
The listed oxidation states are -1, 1, 3, 4, 5, 7.
How can I view the Bromine atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.