Published by:
CGP EDU Academic Team
Published on: August 11, 2026
The first and the last of lanthanoids elements are
Text Solution
Verified by ExpertsThe correct answer is:
D
The order of filling up of the 
orbitals begins with cerium ( Ce ) 
and ends at lutetium (Lu) 
to give the 
‐ inner transition series which is called the lanthanoid series.
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