JEE Main 2003Annual, Paper 1ChemistryHardAtomic Structure113× since 2002Which one of the following groupings represents a collection of isoelectronic species? (At. nos. : Cs : 55, Br : 35)AOption A. N³⁻, F⁻, Na⁺BOption B. Be, Al³⁺, Cl⁻COption C. Ca²⁺, Cs⁺, BrDOption D. Na⁺, Ca²⁺, Mg²⁺CheckSkip · show solution
