Question

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it's urgent I have exam in one hour
I need this

Answer 1

The divalent ion in aqueous solution with atomic number 25 will be having a d6 configuration
i.e. it will be having 4 unpaired electrons
Magnetic moment can be calculated as follows:

 
$\sqrt{n(n + 2)} \sqrt{4(2)} \\ \sqrt{26} \\ 5.something$
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Answer 2

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