Polarity of Molecules - a different approach

It should be noted that according to some resources a molecule is polar if its electrons are not evenly distributed. A molecule with an uneven electron distribution is said to have a dipole moment. This means that there are two possible answers to the question of whether IF₃ is polar.

According to the first idea of polarity it is not polar, since all of the things on the outside are negative. However, since the bonds are distinctly polar it is true that the electrons are not evenly distributed and as a result the molecule could be considered polar according to the second definition.

For our purposes, polarity will be used to predict the behavior of molecules in groups, as a result, we care much more about whether they attract each other than whether the electrons are evenly distributed. Therefore we will be using the first definition for polarity throughout the rest of this text.