Question

How is a nonpolar covalent bond different than a normal covalent bond?

a. electrons are not shared
b. one of the atoms is an ion
c. electrons are shared, but they aren't shared evenly​

Answer 1

c. Electrons are shared, but they aren't shared evenly

Step-by-step explanation:

Pure (non polar) bonds have a low electronegativity difference of 0.0 - 0.4 which allows electrons to be shared.

Polar bonds have a high electronegativity difference of 2.0 4.0 so rather than sharing the electrons, the electrons will be transferred to one atom only and will stay there.

Covalent bonds have a electronegativity difference between these two types of bonds (0.4 - 2.0) so electrons are shared but not equally, meaning they are shared between the two atoms but stay at one atom for a longer period of time than the other.