S2.1 The ionic model
This section covers the electrostatic attraction between oppositely charged ions to form ionic compounds. It includes the physical properties of ionic compounds, their names and formulas and the three-dimensional lattices they form. What determines the ionic nature and properties of a compound? Sodium burns in chlorine gas to form the salt sodium chloride. Na(s) + ½Cl2(g) ⟶ NaCl(s) This example is usually taken to...