The spin-only magnetic moment value of $B_2^ +$ species is _____________ $\times$ 10$-$2 BM. (Nearest integer) [Given : $\sqrt 3$ = 1.73]
Answer (integer)
173
Solution
$$B_2^ + \Rightarrow \sigma _{1s}^2\sigma _{1s}^{*2}\sigma _{2s}^2\sigma _{2s}^{*2}\pi _{2py}^1 \simeq \pi _{2pz}^0$$<br><br> It has one
unpaired electron.<br><br>Spin - only magnetic moment = $\mu$
<br><br>= $\sqrt {n\left( {n + 1} \right)}$
<br><br>n = Number of unpaired electrons
<br><br>$= \sqrt {1(1 + 2)} = \sqrt 3$ BM<br><br>= 1.73 BM<br><br>= 1.73 $\times$ 10<sup>$-$2</sup> BM
About this question
Subject: Chemistry · Chapter: Chemical Bonding and Molecular Structure · Topic: Ionic and Covalent Bonding
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