Question:
Which of the following sets contain only isoelectronic ions?
(i) Zn2+, Ca2+, Ga3+, Al3+
(ii) K+, Ca2+, Sc3+, Cl–
(iii) P3-, S2-, Cl–, K+
(iv) Ti 4+, Ar, Cr3+, V5+
Solution:
Option (ii) K+, Ca2+, Sc3+, Cl– and (iii) P3-, S2-, Cl–, K+ are the answers.
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