Let us consider the example of Na and Cl. Both atoms are called "neutral" simply because they have the same total number of protons as electrons, yet they have a very weak electric field which is hardly measurable. The electron transfer between two neutral atoms is ultimately driven by the electrostatic force.
Arguments like: This is because atoms and molecules are always trying to achieve the most stable, lowest energy state that they can don't really adress my problem, "lower energy" is not a fundamental force but the outcome of a process caused by electrostatic force.
So, in the end, can we say that this very weak electric field of a neutral atom is the main cause that it can attract electrons of other neutral atoms? Simply because the electrons are not classically like point charges in the same place as the protons?
Is there a more detailed book that deals with this in particular? Because I think this is fundamentally important.