Question

Zn is not a transitional element but Cu is a transitional element. Explain with electron structure.

Answer 1

This is because
Zn has 3d10 electronic configuration due to which electron cannt be able to jump from one orbital to other hence it is not a transition element.

In case of Cu it has 3d9 electronic configuration so that there is one vacant orbital in which an electron can jump so it is a transition element.

Electronic configuration of Zn and Cu are
Zn : 1s2 2s2 2p6 3s2 3p6 4s2 3d10
Cu : 1s2 2s2 2p6 3s2 3p6 4s2 3d9

Answer 2

Answer:

Explanation:

(i) Elements present in groups 3 to 12 in the middle

of the periodic table are called transition elements.

(ii) Their last two outermost shells are incomplete.

(iii) They belong to d-block of Modern Periodic table.

(iv) All these elements are solid metals at room

temperature (except Mercury and Gallium).