Question
Chemistry Question on d -and f -Block Elements
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 ,3d8 and 3d4?
Answer
| Electronic configuration in ground state| Stable oxidation states
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(i)| 3d2 (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 no 3d4 configuration in ground state.