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Question: Answered & Verified by Expert
The main reason for larger number of oxidation states exhibited by the actinides than the corresponding lanthanides, is
Chemistryd and f Block ElementsJIPMERJIPMER 2007
Options:
  • A lesser energy difference between $5 f$ and $6 d$ orbitals than between $4 f$ and $5 d$ orbitals
  • B larger atomic size of actinides than the lanthanide
  • C more energy difference between $5 f$ and $6 d$ orbitals than between $4 f$ and $5 d$ orbitals
  • D greater reactive nature of the actinides than the lanthanides
Solution:
2697 Upvotes Verified Answer
The correct answer is: lesser energy difference between $5 f$ and $6 d$ orbitals than between $4 f$ and $5 d$ orbitals
The main reason for larger number of oxidation states exhibited by actinides than corresponding lanthanides is lesser energy difference between $5 f$ and $6 d$ orbitals than between $4 f$ and 5d-orbitals.

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