Published by:
CGP EDU Academic Team
Published on: August 12, 2026
Lanthanoid contraction is due to
A
Strong shielding by 
electrons
electrons B
Poor shielding by 
electrons
electrons C
Decreasing 
on outer electrons of 
elements
on outer electrons of elements D
Increasing 
on outer electrons of 
elements
on outer electrons of elements
Text Solution
Verified by ExpertsThe correct answer is:
D
Poor shielding of 
electron increase 
on 
(outermost) electrons resulting in contraction.
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