Question

4. Which one of the following set of ions represents a collection of isoelectronic
species?
(a)K+, Cr, Ca2+, Sc3#
(b)Ba2+, Sr?, K+, 52-
(c)N , 02-, F™,
(d)Li+, Na+, Mg2+, Ca2+​

Answer 1

Explanation:

(d) Li+,Na+,Mg2+,Ca2+