Question

Will ³⁵Cl and ³⁷Cl have different valencies? Justify your answer.

Answer 1

No, both ³⁵CI and ³⁷CI will have same valencies, as ³⁵CI and ³⁷CI are isotopes. The isotopes have same number of electrons and protons. They differ only in the number of neutrons. Their electron distribution will be same.