Which isoelectronic series is correctly arranged in order of increasing radius? A)K⁺

Question

Which isoelectronic series is correctly arranged in order of increasing radius? A)K⁺ < Ca²⁺ < Ar < Cl^- B)Cl^- < Ar < K⁺ < Ca²⁺ C)Ca²⁺ < Ar < K⁺ < Cl^- D)Ca²⁺ < K⁺ < Ar < Cl^- E)Ca²⁺ < K⁺ < Cl^- < Ar

Quizplus · Accepted Answer

In an isoelectronic series, the radius increases with decreasing nuclear charge. Ca²⁺ has the highest nuclear charge, followed by K⁺, Ar, and Cl^-, which has the lowest nuclear charge, resulting in the largest radius.

Which Isoelectronic Series Is Correctly Arranged in Order of Increasing