The magnetic moment is associated with its spin angular momentum and orbital angular momentum. Spin only magnetic moment value of `Cr^(3+)` ion is -

Options

A. 2.87 BM
B. 3.87 BM
C. 3.47 BM
D. 3.57 BM

Answer

B

Explanation

`Cr^(3+)(Z=24)` has `3d^(3)` configuration with three unpaired electrons. `mu = sqrt(n(n+2))BM = sqrt(3(3+2)) = 3.87BM`.