NEET Chemistry
Silicon: electronic configuration and properties
Silicon has atomic number 14 and electronic configuration [Ne] 3s2 3p2. Explore its periodic behaviour and open the interactive atom model.
Open Silicon in 3DKey properties of Silicon
- Symbol
- Si
- Atomic number
- 14
- Atomic mass
- 28.0855(3)
- Family
- metalloid
- Electronic configuration
- [Ne] 3s2 3p2
- Shell distribution
- 2, 8, 4
- Oxidation states
- -4, -3, -2, -1, 1, 2, 3, 4
- Standard state
- solid
Periodic behaviour
Atomic radius: 111 pm. Electronegativity: 1.9. First ionisation energy: 787 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 Silicon.
Related metalloid elements
Frequently asked questions
What is the electronic configuration of Silicon?
Silicon has electronic configuration [Ne] 3s2 3p2, with shell distribution 2, 8, 4.
What are the oxidation states of Silicon?
The listed oxidation states are -4, -3, -2, -1, 1, 2, 3, 4.
How can I view the Silicon atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.