Chemical BondingHard
Question
The increasing order of the ionic radii of the given isoelectronic species is :-
Options
A.K+, S2-, Ca2+ , Cl-
B.Cl-, Ca2+, K+ , S2-
C.S2-, Cl-, Ca2+, K+
D.Ca2+, K+, Cl-, S2-
Solution
In isoelectronic ions 
Size Ca2+ < K+ < Cl- < S2-
Size Ca2+ < K+ < Cl- < S2-
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