1.

Which one of the following show highest magnetic moment?A. `V^(3+)`B. `Cr^(3+)`C. `Fe^(3+)`D. `CO^(3+)`

Answer» Correct Answer - C
Valence shell electron configuration of `V^(3+) is [Ar]^(18)3d^(2),so n=2`
(B) Valence shell electron configuration of `Cr^(3+) is [Ar]^(18) 3d^(3),so n=3`
(C ) Valence shell electron configuration of `Fe^(3+) is [Ar]^(18) 3d^(5),so n=5`
(D) Valence shell electron configuration of `Co^(3+) is [Ar]^(18) 3d^(6),so n=4`


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