1.

To what extent do the electronic configurations decided the stability of oxidation states in the first series of the transition elements?

Answer»

SOLUTION :If an element has `d^(0), d^(5) or d^(10)` configuration in a PARTICULAR oxidation state, then they are STABLE EX:
(i) `Sc^(3+)` is stable because of `d^(0)` configuration. It is more stable than `Sc^(+)`.
(II) `V^(5+)` is more stable than `V^(3+)` because of `d^(0)` configuration.
(iii) `Mn^(2+)` is more stable than `Mn^(3+)` due to `d^(5)` configuration.
(iv) `Fe^(3+)` is more stable than `Fe^(2+)` due to `d^(5)` configuration.
(v) `Zn^(2+)` is more stable than `Zn^(+)` due to `d^(10)` configuration.


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