What is the ionic bond formation of aluminum and chlorine?
Aluminum and chlorine form covalent bonds, not ionic bonds.
This is consistent with the fact that aluminum chloride changes directly from a solid to a gas at the relatively low temperature of 180 °C.
Al has three valence electrons.
Measurements show that the formula of the vapour is
It exists as a dimer (two molecules joined together) in which two electrons from one
Energy is released when the two coordinate bonds are formed, so the dimer is more stable than two separate