Home Chemistry Classification of Elements and Periodicity Atomic and Ionic Radius The correct order of Ionic radius is :
Chemistry Classification of Elements and Periodicity Atomic and Ionic Radius Single Correct MCQ
Published on: August 12, 2026

The correct order of Ionic radius is :

A
Ti 4+ < Mn 7+
B
35 Cl – < 37 Cl –
C
K + > Cl –
D
P 3+ > P 5+

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Text Solution

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The correct answer is:
D

Larger the positive charge on the ion, smaller will be the size of ion for the same element due to increasing Z eff . For isoelectronic species, ionic radius ∝

Ions formed by isotopes have very similar ionic radii due to same number of electrons and same nuclear charge.

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