Question:
The ionic radius of $\mathrm{Na}^{+}$ions is $1.02 \backslash \mathrm{AA}$. The ionic radii (in $\backslash \mathrm{AA}$ ) of $\mathrm{Mg}^{2+}$ and $\mathrm{Al}^{3+}$, respectively, are
Correct Option: , 2
Solution:
The ionic radii order is $\mathrm{Na}^{+}>\mathrm{Mg}^{2+}>\mathrm{Al}^{3+}$