Question

Which of the following is not a transition element?

• A. $Cu$
• B. $Ac$
• C. $Zn$
• D. $Pd$

Answer 1

The correct option is C $Zn$

Transition metals are those who have incompletely filled d sub-shell.
$Zn$ has electronic configuration $\left(4s^{2}3d^{10}\right)$. So, both in ground state and most stable Oxidation State (which is +2), $3d$ is completely filled. So, $Zn$ is not a transition metal.