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Explain why Mn2+ ion is more stable than Mn3+? - Chemistry

Explain why Mn2+ ion is more stable than Mn3+? (Given : Mn→ Z=25)

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Solution

The electronic configuratioon of Mn+2 ion is [Ar]3d54s0

It has five unpaired electrons in its d-orbitals which is maximum value for a transition metal ion. While Mn+3 ion has electronic configuration [Ar] 3d4 4s0.

Mn+2 ions are more stable than Mn+3 ions.

Concept: P - Block Group 15 Elements - Oxides of Nitrogen
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