Compare the radii of two species X and Y. Give reasons for your answer.

(a) X has 12 protons and 12 electrons.

(b) Y has 12 protons and 10 electrons.

Radii of Y is less than X because Y is cation of X.

(a) X has 12 protons and 12 electrons.

(b) Y has 12 protons and 10 electrons.

Radii of Y is less than X because Y is cation of X.