Which metal in the 3d series exhibits +1 oxidation state most frequently and why?

Short/Brief Note

1. The first transition metal copper exhibits only +1 oxidation state.

2. It is unique in 3d series having a stable +1 oxidation state.

Cu (Z = 29)

Electronic configuration is [Ar] 3d¹⁰ 4s²

3. So copper element only can have +1 oxidation state.

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Chapter 4: Transition and Inner Transition Elements - Evaluation [Page 129]

Chapter 4 Transition and Inner Transition Elements
Evaluation | Q 25. | Page 129

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\[\ce{MnO^2-_4 + H^+ ->?}\]

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