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  4. What will be the bond order of the species with electronic configuration 1s2 2s2 2p5?

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Q. What will be the bond order of the species with electronic configuration $1s^{2} 2s^{2} 2p^{5}$?

Chemical Bonding and Molecular Structure

Solution:

Electronic configuration of atom: $1s^2 2s^2 2p^5 $
$M.O.$ configuration
$\left(\sigma 1s^{2}\right)\left(\sigma^* 1s^{2}\right)\left(\sigma 2s^{2}\right)\left(\sigma^* 2s^{2}\right)\left(\sigma 2p_{z}^{2}\right) \left(\pi 2p_{x}^{2} = \pi2p_{y}^{2}\right)$
$\left(\pi^* 2p_{x}^{2} = \pi^*2p_{y}^{2}\right)$
$B .O. = \frac{1}{2} \times (10-8) = 1$