Question

using ideas about structure and bonding explain why magnesium chloride has a high melting point

Answer 1

Answer:

The magnesium ions have more than one charge (2+). These highly charged ions will attract other ions more strongly than ions with one charge, therefore more energy will be needed to overcome the electrostatic forces of attraction and so the melting points will be higher. These strong ionic bonds allow "billions" of ions to be packed together in a regular repeating arrangement called a lattice structure.