Question

whichof the following is not a transition metal?​

Answer 1

Answer:

Not all d block elements count as transition metals! A transition metal is one that forms one or more stable ions which have incompletely filled d orbitals. On the basis of this definition, scandium and zinc do not count as transition metals - even though they are members of the d block.

Answer 2

Answer:

K belongs to first group. It is a normal metal. Elements of d block are transition metals. Hence K is not a transition metal