The spin magnetic momentum of electrons in an ion is 4.84 BM. Its total spin will be

±1

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±2

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±2.5

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Solution

The correct option is B
±2

<p> $\sqrt{n (n + 2)}$ = 4.84 n(n + 2) = 24 n =4 s = $r_{1}$ + $r_{2}$ + $r_{3}$ + $r_{4}$ = $\frac{1}{2} + \frac{1}{2} + \frac{1}{2} + \frac{1}{2}$ = 2 or = $\frac{- 1}{2} \frac{- 1}{2} \frac{- 1}{2} \frac{- 1}{2}$ = -2</p>

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