# What is the molecular polarity for chlorine, hydrogen chlorine, dinitrogen, ammonia gases?

So, we have $C {l}_{2}$, and $N \equiv N$ molecules. Given that these are homonuclear, diatomic molecules, there is NO POLARITY in the $\text{element"-"element}$ bonds, i.e. no charge separation. On the other for their hydrides, $N {H}_{3}$, and $H C l$, there is substantial bond polarity:
$\stackrel{\delta +}{H} - \stackrel{\delta -}{C} l$, and ${H}_{2} \stackrel{\delta -}{N} \stackrel{\delta +}{H}$