(A) : The ionic radii follow the order I^– > I > I⁺ 
(R) : I, I^– and I⁺ are not isoelectronic species.

The ionic radii follow the order ${\mathrm{I}}^{-}>\mathrm{I}>{\mathrm{I}}^{+}$. They are not isoelectronic species. Therefore, the A is correct but the R is incorrect.

The ionic radius of an anion is more than a neutral atom while the ionic radius of a cation is less than the radius of a neutral atom.

Therefore, Option B is the correct answer.