Question

Zinc does not show the variable valency as elements of d-block, because:

• A. this is soft metal
• B. d-orbital is full
• C. its melting point is low
• D. volatile Metal

Answer 1

The correct option is B d-orbital is full

Zinc does not show the variable valency as elements of d-block, because d-orbital is full. Its outer electronic configuration is $3d^{10}4s^2$.

So, they tend to lose only 2 electrons from their outermost shell. Hence, only show a valency of +2 and no variable valency.