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Question: Answered & Verified by Expert
What is the primary factor responsible for the similarity in physical and chemical properties between the second and third d series?
Chemistryd and f Block ElementsNEET
Options:
  • A The intervention of the 4f orbitals.
  • B The decrease in metallic radius.
  • C The imperfect shielding of one electron by another in the same set of orbitals.
  • D The filling of 5d orbitals before 4f orbitals.
Solution:
2112 Upvotes Verified Answer
The correct answer is: The intervention of the 4f orbitals.
The similarity in physical and chemical properties between the second and third d series is primarily due to the intervention of the 4f orbitals.

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