Question:
The spin-only magnetic moment value of $\mathrm{B}_{2}^{+}$ species is $\times 10^{-2} \mathrm{BM}$. (Nearest integer)
[Given : $\sqrt{3}=1.73$ ]
Solution:
$\mathrm{B}_{2}^{+} \Rightarrow \sigma_{1 \mathrm{~s}}^{2} \sigma_{1 \mathrm{~s}}^{* 2} \sigma_{2 \mathrm{~s}}^{2} \sigma_{2 \mathrm{~s}}^{* 2} \pi_{2 p y}^{1} \simeq \pi_{2 p z}^{0}$
$\Rightarrow 9 \mathrm{e}^{-}$
$\mu=\sqrt{1(1+2)}=\sqrt{3} \mathrm{BM}$
$=1.73 \mathrm{BM}$
$=1.73 \times 10^{-2} \mathrm{BM}$
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