Strong intermolecular ion-ion forces are responsible for high melting points. Thus the solid state requires close proximity and high order to have high melting point. Hope this answer helps. Good luck!
Melting point is the temperature at which a solid melts or a solid changes to a liquid. In liquids melting point is similar to the freezing point.
Melting point of a substance depends on the molecular composition, force of attraction between molecules and also the presence of impurities.
A strong force of attraction between molecules results in a higher melting point. Such that stronger intermolecular forces results to a higher melting point.
For example, the melting point of ionic compounds is higher due to the strong electrostatic forces joining ions.
