Why are the molecules of hydrocarbons nonpolar?

1 Answer
Jul 10, 2017

Molecules are symetrical and charges are therefore spread out evenly.


Let's take for example methane, #"CH"_4#. Even though the individual bonds of #"C"-"H"# are polar, carbon atoms are more electronegative than hydrogen atoms. The shape provides a balanced charge:

As all bonds are the same and the molecule is symmetrical, each half as the same number of and type of bonds, so the electrons are generally spread out evenly.