Intermolecular Forces

ability of an atom in a particular molecule to attract bonding electrons to itself.

the product of the magnitude of the charge (δ) and the distance (d )

that separates the centre of positive and negative charge.

differences in electronegativity of the bonded atoms

Two type of intermolecular forces ​ (a)   and ​ (b)  

Polar covalent molecules are sometimes described as “dipoles” molecules as it has 2 poles.

Results from instantaneous non-permanent dipoles created by random electron motion. The distribution of electrons at a given instant in time, may not be equal around an individual atom. This gives rise to a temporary dipole.