Question

The elements of 3d transition series are given as:

$\begin{array}{cccccccccc}Sc& Ti& V& Cr& Mn& Fe& Co& Ni& Cu& Zn\end{array}$

Answer the following:
(i) Write the element which is not regarded as a transition element. Give reason.
(ii) Which element has the highest m.p.?
(iii) Write the element which can show an oxidation state of +1.
(iv) Which element is a strong oxidizing agent in +3 oxidation state and why?

Answer 1

(i) Zinc has full $d^{10}$ configuration in its ground state as well as in its oxidation state, and is hence regarded as transition metal.
(ii) Mn
(iii) Cu (Copper)
(iv) Ce (Cerium)