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Question: Answered & Verified by Expert
Californium (atomic number = 98) is a member of
ChemistryClassification of Elements and Periodicity in PropertiesNEET
Options:
  • A s-block
  • B p-block
  • C d-block
  • D f-block
Solution:
1295 Upvotes Verified Answer
The correct answer is: f-block
Its configuration is [Rn] 5f107s2 . Since the last electron enters the 5f-orbital, therefore, it is a member of f-block.

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