Explain the properties of graphene in terms of its structure and bonding.

In the subtopic Graphene and fullerenes, this learning objective focuses on explain the properties of graphene in terms of its structure and bonding. Within Structure and bonding of carbon, students should explain this idea in the exact curriculum context rather than as an isolated fact. Approved keywords for this objective include graphene. Graphene means a single layer of carbon atoms arranged in a hexagonal lattice, known for its exceptional electrical conductivity and strength. Avoid students often state that graphene conducts electricity because it has a high number of carbon atoms; instead students should explain that graphene conducts electricity due to the presence of delocalised electrons that can move freely within its structure. For exam answers, focus on how the structure of graphene, with its single layer of carbon atoms arranged in a hexagonal lattice, leads to its unique properties such as high electrical conductivity and strength.