The correct order of ionic size of N3−,Na+,F−,Mg2+ and O2− is :

see full answer

Talk to JEE/NEET 2025 Toppers - Learn What Actually Works!

Real Strategies. Real People. Real Success Stories - Just 1 call away

An Intiative by Sri Chaitanya

Mg2+>Na+>F−>O2−

N3−O2−>Na+>Mg2+

Mg2+

N3−>O2−>F−>Na+

answer is C.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

N3−,Na+,F−,Mg2+ and O2− are isoelectronic species. All have 10 electrons. As pe↑; size decreases Mg2+

Watch 3-min video & get full concept clarity