When a ballon is rubbed on a wall,transfer of electrons takes place .....?

Question

This transfer of electrons makes positive and negative charges which makes the ballon stick to the wall.
But usually when there is a transfer of electrons,Ionic compounds are formed.Why is it that some materials do not form ionic compounds and instead attain only the charges that keep them together for some time?

Answer 1

You're thinking of ions in a solution that roam freely in the solution. Or ions in a gas. The rubber molecules lose some electrons but the atoms are tightly bound together in the molecules of rubber balloon. Eventually they will attract opposite charges and become neutral again.

Answer 2

Static electricity is a surplus, or lack of, electrons from the valence bands of the surface of the material with the charge (or lack thereof). Since it is a surface effect only and since these electrons do not carry enough energy to force a chemical bond, there are no ionic bonds created from the material holding the extra electrons (or lacking electrons).

It may be possible to increase the static voltage to some large extent (Mega-electronvolts or higher) and force enough electrons onto the surface of some object while keeping the object from discharging (i.e. put it in a vacuum), such that there would be enough energy to force some ionizations. That would be an interesting experiment.

.

Answer 3

my friend, chemistry is what you need.