Cambridge Secondary (7-9). Stage 9. MCE Science. Workbook - Unit 5: Chemical Bonding and Structure of Materials - Question 15

When a metal and a non-metal react, the metal atoms become positively charged ions and the non-metal atoms become negatively charged ions. The oppositely charged ions are attracted to each other forming stable ionic compounds.

Using dot-and-cross diagrams, illustrate the ionic bonding in beryllium oxide. Show all the electrons.