Question

For d-block elements the first ionisation potential is of the order Zn <Cu <Ni<Co​

Answer 1

Answer:

40

Answer. There are 40 d-block elements. D-block elements are also known as the transition metals.

Explanation:

For d block elements the first ionization potential is of the order : (a) Zn > Fe > Cu > Cr. (b) Sc = Ti < V = Cr. (c) Zn < Cu < Ni < Co. (d) V > Cr > Mn > Fe.