Question:
The most common oxidation state observed for lanthanides in their compounds is:
The most common oxidation state observed for lanthanides in their compounds is:
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Consider the electron configuration lanthanides adopt on ionization.
Updated On: Jul 3, 2026
- +1
- +2
- +3
- +4
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The Correct Option is C
Solution and Explanation
Step 1: Lanthanides [Xe]4fn5d0-1 6s2 lose 6s2 (and 5d1 if present) to give Ln3+, [Xe]4fn.
Step 2: +2, +4 states occur only for specific stable configs (Eu2+, Ce4+ etc).
Step 3: +3 is achieved by all 14 lanthanides.
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