The diagram shows both a unit cell with ion locations indicated (a) and a space filling model (b) of ionic hard spheres. The cohesive energy of NaCl is - 7.90 eV, with a Coulomb contribution of -8.85 ...

Revise and develop your knowledge of different types of bonding. Learn about ionic, ... Dot and cross diagrams for covalent bonding; ... They form ions which bond to form sodium chloride. 1.

In this National 4 Chemistry study guide learn about atomic structure and numbers, ... Ionic bonds are formed between a metal and non-metal, for example, sodium chloride.