Question

Write the electronic configuration of any pair of isotopes and isobars.

Answer 1

Two isotopes of carbon are ₆C¹² and ₆C¹⁴

              The electronic configuration of ₆C¹² is 2, 4. 

              The electronic configuration of ₆C¹⁴ is 2, 4. 

             [Isotopes have same electronic configuration]

₂₉Ca⁴⁰ and ₁₈Ar⁴⁰ are a pair of isobars

               The electronic configuration of ₂₉Ca⁴⁰ is 2, 8, 8, 2 

               The electronic configuration of ₁₈Ar⁴⁰ is 2, 8, 8. 

              [Isobars have different electronic configuration]