This Study Mind Tutorial covers the following specification points:

Edexcel: 2.1, 2.2, 2.3, 2.4, 2.5, 2.6

2.1. know that ionic bonding is the strong electrostatic attraction between oppositely charged ions

2.2. understand the effects that ionic radius and ionic charge have on the strength of ionic bonding

2.3. understand the formation of ions in terms of electron loss or gain

2.4. be able to draw electronic configuration diagrams of cations and anions using dot-and-cross diagrams

2.5. understand reasons for the trends in ionic radii down a group and for a set of isoelectronic ions, e.g. N³⁻ to Al³⁺

2.6. understand that the physical properties of ionic compounds and the migration of ions provide evidence for the existence of ions