NEET Chemistry
Radium: electronic configuration and properties
Radium has atomic number 88 and electronic configuration [Rn] 7s2. Explore its periodic behaviour and open the interactive atom model.
Open Radium in 3DKey properties of Radium
- Symbol
- Ra
- Atomic number
- 88
- Atomic mass
- 226
- Family
- alkaline earth metal
- Electronic configuration
- [Rn] 7s2
- Shell distribution
- 2, 8, 18, 32, 18, 8, 2
- Oxidation states
- 2
- Standard state
- solid
Periodic behaviour
Atomic radius: not experimentally determined. Electronegativity: 0.9. First ionisation energy: 509 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 Radium.
Related alkaline earth metal elements
Frequently asked questions
What is the electronic configuration of Radium?
Radium has electronic configuration [Rn] 7s2, with shell distribution 2, 8, 18, 32, 18, 8, 2.
What are the oxidation states of Radium?
The listed oxidation states are 2.
How can I view the Radium atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.