Question

For given isoelectronic species, the order of increasing ionic radii will be:

(a) Cl^-, Ca²⁺, K⁺, S^2- 

(b) S^2-, Cl^-,  Ca²⁺, K⁺

(c) Ca²⁺, K⁺, Cl, S^2-

(d) K⁺, S₂, Ca²⁺, Cl^-

Answer 1

Correct option is : (c) Ca²⁺, K⁺, Cl, S^2-