ionic crystals

Ionic crystals are solids composed of positive and negative ions arranged in a regular, repeating pattern. These ions form through the transfer of electrons from one atom to another, creating charged particles. The electrostatic attraction between the oppositely charged ions holds the entire structure together, resulting in a strong, stable crystal. Common examples include table salt (sodium chloride). Ionic crystals tend to have high melting points, are hard, and often dissolve in water because the water molecules can separate and carry away the ions. This structure gives ionic crystals their characteristic physical properties.