Chemistry - Complete s-block Question with Solution | TestHub

Be and Al have similar properties (diagonal relationship), because they have similar polarizing power.
$\mathrm{B}{\mathrm{e}}^{2+}$(size = 27 pm) and$\mathrm{A}{\mathrm{l}}^{3+}$(size = 53.5) have similar polarizing powers [charge/$4\mathrm{\pi }$(ionic radius${)}^2$].