NEET Chemistry
Chromium: electronic configuration and properties
Chromium has atomic number 24 and electronic configuration [Ar] 3d5 4s1. Explore its periodic behaviour and open the interactive atom model.
Open Chromium in 3DKey properties of Chromium
- Symbol
- Cr
- Atomic number
- 24
- Atomic mass
- 51.9961(6)
- Family
- transition metal
- Electronic configuration
- [Ar] 3d5 4s1
- Shell distribution
- 2, 8, 13, 1
- Oxidation states
- -2, -1, 1, 2, 3, 4, 5, 6
- Standard state
- solid
Periodic behaviour
Atomic radius: 127 pm. Electronegativity: 1.66. First ionisation energy: 653 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 Chromium.
Related transition metal elements
Frequently asked questions
What is the electronic configuration of Chromium?
Chromium has electronic configuration [Ar] 3d5 4s1, with shell distribution 2, 8, 13, 1.
What are the oxidation states of Chromium?
The listed oxidation states are -2, -1, 1, 2, 3, 4, 5, 6.
How can I view the Chromium atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.