Interactive model, with minimal support
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This model allows you to see how an ionic crystal is formed when the temperature is lowered. You will observe that, in contrast to the fact that particles without charges often crystallize to most close-packed lattice structure, particles with charges tend to crystallize to a square lattice, which is not the most close-packed structure.
Ionic bonds are formed by electrostatic forces between charges on atoms. Ionic bonds are usually much stronger than the van der Waals potentials between atoms. Because of them, ions with positive and negative charges tend to stick together.
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