Question

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

• A. $\pm 1$
• B. $\pm 2$
• C. $\ge$ $\sqrt{\frac{h}{4\pi }}$
• D. $\pm 2.5$

Answer 1

The correct option is B

$\pm 2$

<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>