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Explain Why is Fe3+ More Stable than Fe2+? - Chemistry

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Explain why is Fe3+ more stable than Fe2+?

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Solution

Electronic configuration of Fe2+ : 1s2 2s2 2p6 3s2 3p6 3d6
Electronic configuration of Fe3+ : 1s2 2s2 2p6 3s2 3p6 3d5 
Due to the presence of half filled ‘d’ orbital, Fe3+ is more stable than Fe2+.

Concept: General Properties of the Transition Elements (D-block)
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