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 ...

Dot and cross diagrams help us to model when ions are formed from atoms. Here’s an example using sodium and chlorine. They form ions which bond to form sodium chloride. 2. Work out how many ...

But in ionic bonding, electrons are transferred from one atom to the other and not shared like in covalent bonding. Students will use Styrofoam balls to make models of the ionic bonding in sodium ...

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.