MEDIUMMCQ SINGLEIChO (Chemistry Olympiad)Inorganic ChemistryPeriodic PropertiesAtomic radius

In isoelectronic species of Mg2+, N3–, Al3+, the order of decreasing ionic radii will be

A.N3–> Mg2+> Al3+✓ Correct

B.Mg2+> Al3+> N3–

C.Al3+> N3–> Mg2+

D.Al3+ = Mg2+< N3–

Explanation

3 2 3 N Mg Al For Isoelectronic species size 1 At.No

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