ChemistryHard113×since 2002Q2132Which one of the following groupings represents a collection of isoelectronic species? (At. nos. : Cs : 55, Br : 35)AN³⁻, F⁻, Na⁺BBe, Al³⁺, Cl⁻CCa²⁺, Cs⁺, BrDNa⁺, Ca²⁺, Mg²⁺Check answerSkip