Published by:
CGP EDU Academic Team
Published on: August 13, 2026
The correct order of ionic radii of trivalent ions 
, 
, and 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
are the lanthanide elements and their trivalent cations are very stable. The ionic radii decreases along the period as the atomic weight lanthanide contraction increase. However, the change is in ionic radii is very small amount.
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