Question

Compare the general characteristics of the first series of the transition metals with those of the second and third series metals in the respective vertical columns. Give special emphasis on the following points: (i) electronic configurations, (ii) oxidation states, (iii) ionisation enthalpies, and (iv) atomic sizes.

Answer 1

Answer:

In the first transition series, 3d orbitals are progressively filled whereas, in second and third transition series, 4d and 5d orbitals are filled. +2 and +3 oxidation states of first transition series elements are more stable than +2 and +3 oxidation states of second and third transition series elements