# What are examples of chemical formulas representing a diatomic molecule?

Apr 29, 2017

Apart from the Noble Gases, ALL of the elemental gases are bimolecular..........

#### Explanation:

.........i.e. all of the elemental gases are diatomic molecules. Consider, ${N}_{2}$, ${O}_{2}$, ${F}_{2}$, and $C {l}_{2}$ ARE ALL diatomic gases.

And all the halogens occur as diatomic molecules; except that bromine is a liquid, and iodine is a gas.

To reflect the molecularity, sometimes you will hear inorganic chemists refer to the bimolecular gases as $\text{dinitrogen}$, and $\text{dinitrogen}$.

Note that there also exist a number of heteronuclear diatomic molecules, e.g. $H X$, $N O$, $C O$...........