16 6
Look at the diagrams.
They show the structures of diamond, graphite and Buckminster fullerene. Key = carbon atom
diamond
graphite
Buckminster fullerene
(a) Diamond, graphite and Buckminster fullerene are allotropes of carbon.
Explain what is meant by allotropes. ................................................................................................................................................... .............................................................................................................................................. [1]
(b) Graphite is used in lubricants. Graphite Lubricant
LOCKS, HINGES & MORE
Use the structure of graphite to explain why. ................................................................................................................................................... .............................................................................................................................................. [1]
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