Periodic TableHard

Question

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

Options

A.K+, Ca2+, Sc3+, Cl-
B.Na+, Mg2+, Al3+, Cl-
C.K+, Cl-, Mg2+, Sc3+
D.Na+, Ca2+, Sc3+, F-

Solution

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