"Isoelectronic molecules and ions have identical bond orders." Explain by examples.

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Bond order in Isoelectronic molecules/ions :

If two or more diatomic molecule or ion are isoelectronic so its bond order is same. Example-$1$: $\mathrm{F}_{2}$ and $\mathrm{O}_{2}^{-2}$ both have same $18$ electrons and bond order is also same $1$ . $\mathrm{F}_{2}: \mathrm{F}-\mathrm{F}$ and $\mathrm{O}_{2}^{-2}(\mathrm{O}-\mathrm{O})^{2-}$

Example-$2$: $\mathrm{N}_{2}, \mathrm{CO}$ and $\mathrm{NO}^{+}$are isoelectronic and containing $14$ electron and triple bond in it.

Molecule/ion $\mathrm{N}_{2}$ $\mathrm{CO}$ $\mathrm{NO}^{+}$
Bond structure $\mathrm{N} \equiv \mathrm{N}$ $\mathrm{C} \equiv \mathrm{O}$ $\mathrm{N} \equiv \mathrm{O}^{+}$

 

Similar Questions

The pairs of species of oxygen and their magnetic behaviour are noted below. Which of the following presents the correct description ?

  • [AIPMT 2011]

Which of the following is paramagnetic

What is meant by the term bond order ? Calculate the bond order of: $N _{2}, O _{2}, $ $O _{2}^{+}$ and $O _{2}^{-}$

Match List $I$ with List $II$ :

List $I$ (Molecule  Species)

List $I$ ( Property  Shape )

$A$ $\mathrm{SO}_2 \mathrm{Cl}_2$ $I$ Paramagnetic
$B$ $NO$ $II$ Diamagnetic
$C$ $\mathrm{NO}_2^{-}$ $III$ Tetrahedral
$D$  $\mathrm{I}_3^{-}$ $IV$ Linear

Choose the correct answer from the options given below :

  • [JEE MAIN 2024]

In which of the following transformations, the bond order has increased and the  magnetic behaviour has changed?