NEET Chemistry
Antimony: electronic configuration and properties
Antimony has atomic number 51 and electronic configuration [Kr] 4d10 5s2 5p3. Explore its periodic behaviour and open the interactive atom model.
Open Antimony in 3DKey properties of Antimony
- Symbol
- Sb
- Atomic number
- 51
- Atomic mass
- 121.760(1)
- Family
- metalloid
- Electronic configuration
- [Kr] 4d10 5s2 5p3
- Shell distribution
- 2, 8, 18, 18, 5
- Oxidation states
- -3, 3, 5
- Standard state
- solid
Periodic behaviour
Atomic radius: 138 pm. Electronegativity: 2.05. First ionisation energy: 834 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 Antimony.
Related metalloid elements
Frequently asked questions
What is the electronic configuration of Antimony?
Antimony has electronic configuration [Kr] 4d10 5s2 5p3, with shell distribution 2, 8, 18, 18, 5.
What are the oxidation states of Antimony?
The listed oxidation states are -3, 3, 5.
How can I view the Antimony atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.