Atomic StructureEasy

Question

Which one of the following groupings represents a collection of isoelectronic species? (At. nos,: 55, Br:35)

Options

A.N^3-, F^-, Na⁺

B.Be, Al^3-, Cl^-

C.Ca²⁺, Cs⁺, Br

D.Na⁺, Ca²⁺, Mg²⁺

Solution

N^3-, F^- and Na⁺ contain 10 electrons each.

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