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Introduction to Quantum Mechanical Model

Which of the ...

Question

Which of the follwoing electronic arrangement gives the highest value of the magnetic moment ?

A

d^{6}

, strong field

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B

d^{7}

, high spin

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C

d^{4}

, weak field

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D

d^{2}

, strong field

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Solution

The correct option is C $d^{4}$ , weak field
As, magnetic moment $μ = \sqrt{n (n + 2)}$ where n is number of unpaired electron.
So, $d^{4}$ , weak field gives the highest value of the magnetic moment as it has 4 unpaired electron.

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