Calculate the 'spin only' magnetic moment of `M^(2+)(aq)` ion (Z = 27).

Explanation

Outer electronic configuration of M (Z = 27) - atom :

`therefore` Outer electronic configuration of `M^(2+)(aq)`- ion :

Number of unpaired electrons in the given ion = 3
`therefore` Spin only magnetic moment `(mu)`
`= sqrt(n(n+2))BM = sqrt(3(3+2))BM=3.87 BM`