Whichmetalin the 3dseries exhibits +1oxidationstatemostfrequentlyand w – InterviewSolution

1.	Whichmetalin the 3dseries exhibits +1oxidationstatemostfrequentlyand why ?
Answer» Solution :(i) The first TRANSITION METAL copper exhibits only +1 oxidation state. ii. It is unique in 3d series having a STABLE +1 oxidation state. `Cu(Z = 29)` ELECTRONIC configuration is `[Ar]3d^(10) 4s^(-1)` (iii) so copper element only can have +1 oxidation state.

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