Question

Why are Zn, Cd and Hg not considered as transition elements?​

Answer 1

Answer:

The electronic configurations of Zn, Cd and Hg are represented by the general formula (n-1)d10 ns2. The orbitals in these elements are completely filled in the ground state as well as in their common oxidation states. Therefore, they are not regarded as transition elements.

Answer 2

Answer:

The elements such as Zn, Cd, and Hg are not transition elements because of their electronic configuration. The orbitals of these elements are completely filled when they are in their ground state as well as in their general oxidation state. Therefore, these elements are not transition elements.