The 'spin only' magnetic moment of Ni2+ in aqueous solution would be : [Atomic number of Ni = 28]
A
√6 BM
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B
√15 BM
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C
√2 BM
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D
√8 BM
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Solution
The correct option is D√8 BM Ni2+ has 3d8 as outer electronic configuration. It has 2 unpaired electrons. The 'spin only' magnetic moment of Ni2+ in aqueous solution would be √n(n+2)=√2(2+2)=√8 BM.