In a crystal of calcium fluoride, CaF2\mathrm{CaF_{2}}CaF2, each Ca2+\mathrm{Ca^{2+}}Ca2+ ion is surrounded by 8 F−\mathrm{F^{-}}F− ions as its nearest neighbours.
How many Ca2+\mathrm{Ca^{2+}}Ca2+ ions surround each F−\mathrm{F^{-}}F− ion as its nearest neighbours?
2
4
8
16
56 exam-style questions on Edexcel GCSE Chemistry 2.3 Ionic bonding, covering 2.3.1 Ions and the formation of ionic bonds, 2.3.2 Naming and deducing formulae of ionic compounds, and 2.3.3 Giant ionic lattices. Each one has a worked solution and a mark scheme showing where the marks go.