Determining a Dipole Moment

[Kathryn Wilhem 1I]

I am confused on what is used to determine whether an atom is positively or negatively charged in a dipole moment. Is it related to formal charge?

[Kevin ODonnell 2B]

The dipole charge has to do with electronegativity. The more electronegative atom has a partial negative charge since it pulls the electrons closer to itself. While, the less electronegative atom is partially positive since the other atom is holding the electrons more tightly.

[Mhun-Jeong Isaac Lee 1B]

So for example, in C2H2Cl2, C is bonded to Cl. The Cl would be more negative because it has a higher electronegativity, it wants electrons more than the C. Thus, the C would be more positive. These are the positive and negative dipole moments.