1.

The highest magnetic moment is shown by the transition metal ion with the configuration

Answer»

`3d^(2)`
`3d^(5)`
`3d^(7)`
`3d^(9)`

Solution :Magnetic moment `= sqrt(N(n+2))BM`
where n = number of UNPAIRED electrons.
Since `3d^(5)` has maximum number of unpaired electrons, its mgnetic moment will be HIGHEST.


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