Graphene and buckminsterfullerene are both forms of the element carbon. Buckminsterfullerene turns to a gas at about 600 ∘C600\ ^\circ\text{C}600 ∘C. Graphene does not melt below 3000 ∘C3000\ ^\circ\text{C}3000 ∘C.
Explain, in terms of structure and bonding, why buckminsterfullerene turns to a gas at a much lower temperature than graphene melts at.
Both substances contain only carbon atoms joined by covalent bonds. Explain why this does not mean that they have the same properties.
40 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.