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Question
To what extent do the electronic configurations decide the stability of oxidation states in the first series of the transition elements? Illustrate your answer with examples.
Solution
The ions in the oxidation state, in which the ions have fully filled or half-filled d shells, are more stable. For example, the +2 state of Mn is more stable than its other oxidation states. Because Mn2+ has a half-filled 3d5 shell. Similarly, the +2 state of Zn is its most stable state because it has a fully filled 3d10 shell.
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