Question

How do London dispersion forces work?

Answer 1

`"London forces"` or `"dispersion forces"` are intermolecular forces of attraction that result from the unequal distribution of electronic charge.

Explanation:

For a given, NEUTRAL atom, a transient UNEQUAL electronic distribution might result in a transient UNEQUAL electronic distribution in a neighbouring atom....and this transient UNEQUAL electronic distribution in the neighbouring atom may result in a transient UNEQUAL electronic distribution in another atom. And so on, and so on....

And this intermolecular force is presumed to operate for the `"Noble Gases"`, and their respective boiling points nicely illustrates the dependence of the intermolecular force upon THE NUMBER of electrons...


Anyway look up the boiling points of the Noble Gases....