NEET Chemistry
Fluorine: electronic configuration and properties
Fluorine has atomic number 9 and electronic configuration [He] 2s2 2p5. Explore its periodic behaviour and open the interactive atom model.
Open Fluorine in 3DKey properties of Fluorine
- Symbol
- F
- Atomic number
- 9
- Atomic mass
- 18.9984032(5)
- Family
- halogen
- Electronic configuration
- [He] 2s2 2p5
- Shell distribution
- 2, 7
- Oxidation states
- -1
- Standard state
- gas
Periodic behaviour
Atomic radius: 71 pm. Electronegativity: 3.98. First ionisation energy: 1681 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 Fluorine.
Related halogen elements
Frequently asked questions
What is the electronic configuration of Fluorine?
Fluorine has electronic configuration [He] 2s2 2p5, with shell distribution 2, 7.
What are the oxidation states of Fluorine?
The listed oxidation states are -1.
How can I view the Fluorine atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.