Ionic crystals

Ionic crystals

i. The constituent particles of ionic crystals are charged ions. The cations and anions. may differ in size.

ii. Each ion of a given sign of charge is bonded to ions of opposite charge around by coulomb force. In other words, the particles of ionic crystals are held by electrostatic force of attraction between oppositely charged ions.

iii. Ionic crystals are hard and brittle. They have high melting points.

iv. These are nonconductors of electricity in solid state. However, they are good conductors when melted or dissolved in water.

For example: NaCl, K SO, CaF, KCI are ionic crystals.