# 3.12  Consider the following species :  $N^{3-} , O ^{2- } , F^- , Na ^+ , Mg ^{2+ }, Al ^{3+}$ (b)    Arrange them in the order of increasing ionic radii.

D Divya Prakash Singh

Given species $N^{3-} , O ^{2- } , F^- , Na ^+ , Mg ^{2+ }, Al ^{3+}$.

As we know that the ionic radii of isoelectric species increases with a decrease in the magnitude of nuclear charge.

So, here is the increasing ionic radii arrangement :

$Al^{3+}

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