Question

which of the d block elements are not regarded as transitional elements

Answer 1

Answer:

Zn, Cd and Hg

Explanation:

Transition Elements

Definition

Any element with one or more unpaired electrons in the ground state present in the d-orbital is called a Transition Element.

Which d-block elements are not considered as transition elements and why?

Zinc, Cadmium and Mercury besides being elements of the d-block are not considered as transition elements due to the absence of any unpaired electrons.

Instead, they are referred to as Pseudo-transition elements.