Question

What may be the stable oxidation state of the transition element with the following d electron configurations in the ground state of their atoms : 3d3, 3d5, 3d8and 3d4?

Answer 1

Answer:

3d³

Explanation:

The maximum oxidation states of reasonable stability in the transition metals of 3d series correspond to the sum of s and d-electrons upto Mn.However, after Mn there is an abrupt decrease in oxidation states.

Answer 2

Explanation:

The usual oxidation state relates to oxidation states that are stable in settings consisting of those chemical species prevalent in conventional inorganic compounds, e.g., oxides, water and other easy donors of oxygen, halogens, excluding fluorine and sulfur.

(i) 3d3 (Vanadium)  - +2, +3, +4 and +5

(ii) 3d5 (Chromium)  - +3, +4, +6

(iii) 3d5 (Manganese)  - +2, +4, +6, +7

(iv) 3d8 (Cobalt) +2, +3

(v) 3d4  - There is no3d4 configuration in ground state.