Which of the following sets of ions represents a collection of isoelectronic species?

Question

N^3-, O^2-, F^-, S^2-

Li⁺, Na⁺, Mg²⁺, Ca²⁺

K⁺, Cl^-, Ca²⁺, Sc³⁺

Ba²⁺, Sr²⁺, K⁺, Ca²⁺

Please login to view the detailed solution steps...