An electron is transferred from sodium to chlorine. Sodium becomes a positive ion and chlorine becomes a negative ion. The positive and negative ions attract each other and form the ionic compound ...

They form ions which bond to form sodium chloride. 2. Work out how many electrons need to be transferred. 3. Draw the electronic configuration of the resulting ions. 4. Write the charge of each ion.

This helps to visualise the structure. A two-dimensional model for the ionic lattice in sodium chloride A 2D model shows the arrangement of one layer of ions but it does have a major additional ...