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Question: Answered & Verified by Expert
The most common oxidation state of Lanthanoid elements is +3. Which of the following is likely to deviate easily from +3 oxidation state?
Chemistryd and f Block ElementsJEE MainJEE Main 2022 (26 Jun Shift 2)
Options:
  • A CeAt. No,58
  • B LaAt. No,57
  • C LuAt. No,71
  • D GdAt. No,64
Solution:
2958 Upvotes Verified Answer
The correct answer is: CeAt. No,58

Electronic configuration of Ce=Xe4f15d16s24eXe

Cerium in +4 oxidation state due to stable xenon configuration. La, Lu and Gd are stable in +3 oxidation state.

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