Question

For a metal ion magnetic moment is calculated to be 4.9BM. Find the number of unpaired.

Answer 1

The magnetic moment of a complex is $\text{4.9 B.M.}$
Thus, unpaired electrons maybe 4.
The expression for the magnetic moment is μ= $\sqrt{n(n+2)}$
​Substitute values in the above expression.
4.9= $\sqrt{n(n+2)}$
$​24.01=n(n+2)$
$\text{Hence, n=4.}$

$\text{The correct answer is 4.}$