# What happens to electrons when a polar covalent bond forms?

##### 1 Answer
Dec 5, 2016

They are unequally shared about the species.

#### Explanation:

Consider the diagram of $C {H}_{4}$ and look for a perspective dipole moment:

In the C-H bonds, the electron are shared unequally between Carbon and Hydrogen. The dipole points toward Carbon because the C-H bond is polar covalent, and this is because Carbon is more electronegative than Hydrogen.

However in $C {H}_{4}$, the dipoles created by the C-H bonds cancel each other out, and as you can observe there is no dipole moment.