What is meant by the term bond order? Calculate the bond order of :nitrogen, oxygen, oxide ion and peroxide ion.

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Solution

Bond Order:- The number of chemical bonds present in a compound or a pair of atoms is called the bond order.
In Figure-1,
Bond Order= $\frac{N o . o f B o n d i n g - N o . o f a n t i b o n d i n g}{2}$
= $\frac{10 - 4}{2} = \frac{6}{2} = 3$
In Figure-2,
Bond Order= $\frac{10 - 6}{2} = \frac{4}{2} = 2$
In Figure-3,
Bond Order= $\frac{10 - 7}{2} = \frac{3}{2} = 1.5$
In Figure-4,
Bond Order= $\frac{10 - 8}{2} = \frac{2}{2} = 1$

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What is meant by the term bond order? Calculate the bond order of: $N_{2}$ , $O_{2}$ , $O_{2}^{+}$ and $O_{2}^{-}$ .

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