Within a layer of graphite, carbon atoms are joined by strong covalent bonds. How many of each carbon atom's four outer electrons are used to form these bonds?
three outer electrons
four outer electrons
two outer electrons
one outer electron
68 exam-style questions on AQA GCSE Chemistry 2.3 Structure and bonding of carbon, covering 2.3.1 Diamond, 2.3.2 Graphite, and 2.3.3 Graphene and fullerenes. Each one has a worked solution and a mark scheme showing where the marks go.