Explains the idea of coordination numbers and gives several examples.
Explains the lattice structure of ionic crystals.
A video on the ionic structure and properties of ionic compounds. Courtesy of Paul Andersen from Bozeman Science
Learn why sapphires might provide the basis for tougher cell phone screens in the near future.
A study guide for ionic bonding, ionic crystal structures, coordination numbers, and physical properties of ionic compounds.
This page explains the relationship between the arrangement of the ions in a typical ionic solid like sodium chloride and its physical properties - melting point, boiling point, brittleness, solubility and electrical behaviour. It also explains why caesium/cesium chloride has a different structure from sodium chloride even though sodium and caesium/cesium are both in Group 1 of the Periodic Table.