The highest magnetic moment is shown by the transition metal ion with which of the following outermost electronic configuration?
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As magnetic moment is$\sqrt{\text{n(n+2)}}$
where $n$ is no. of unpair electron, so greater the no. of unpair electron and greater will be the magnetic moment of a ion.
$3d^{2 }$ has $2$ unpair electron, $3d^5$ has $5$ unpair electron, $3d^7$ has $3$ unpair electron and $3d^9$ has $1$ unpair electron.
So, $3d^5$ has highest magnetic moment.
where $n$ is no. of unpair electron, so greater the no. of unpair electron and greater will be the magnetic moment of a ion.
$3d^{2 }$ has $2$ unpair electron, $3d^5$ has $5$ unpair electron, $3d^7$ has $3$ unpair electron and $3d^9$ has $1$ unpair electron.
So, $3d^5$ has highest magnetic moment.
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