Carbon allotropes
Carbon allotropes
Diamond, graphite, graphene and fullerenes are allotropes of carbon. An allotrope is a different form of the same element in the same physical state, so all four substances contain only carbon atoms.
Step-by-step lessons on OCR GCSE Chemistry 2.3.2 Diamond, graphite, fullerenes and graphene. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.