Terbium: electronic configuration and properties
Terbium has atomic number 65 and electronic configuration [Xe] 4f9 6s2. Explore its periodic behaviour and open the interactive atom model.
Open Terbium in 3DKey properties of Terbium
- Symbol
- Tb
- Atomic number
- 65
- Atomic mass
- 158.92535(2)
- Family
- lanthanoid
- Electronic configuration
- [Xe] 4f9 6s2
- Shell distribution
- 2, 8, 18, 27, 8, 2
- Oxidation states
- 1, 3, 4
- Standard state
- solid
Periodic behaviour
Atomic radius: not experimentally determined. Electronegativity: 1.2. First ionisation energy: 566 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 Terbium.
Related lanthanoid elements
Frequently asked questions
What is the electronic configuration of Terbium?
Terbium has electronic configuration [Xe] 4f9 6s2, with shell distribution 2, 8, 18, 27, 8, 2.
What are the oxidation states of Terbium?
The listed oxidation states are 1, 3, 4.
How can I view the Terbium atom in 3D?
PracticeNEET's interactive periodic table provides a rotatable schematic atom with accurate electron populations by shell.