Intermolecular Forces for Ionic Compound? So in class we have learned London dispersion, dipole-dipole, ion-dipole and hydrogen bonding for intermolecular forces. Our teacher always uses covalent molecules as examples. So I was wondering which intermolecular forces ionic bonds have, if so, how are they formed?
Ions in ionic compounds are held together by electrostatic attractions, i.e. the idea that "opposite charges attract".

The strength of an electrostatic attraction is given by Coulomb's law:

$$F = \frac{1}{4\pi\varepsilon_0}\frac{q_1q_2}{r^2}$$

where $q_1$ and $q_2$ are the charges on the two ions and $r$ is the distance between them. In a completely ionic bond, $q_1$ and $q_2$ are multiples of the elementary charge, $e = 1.602 \times 10^{-19} \text{ C}$; however, no bond is completely ionic.