dimensional representations of 3D objects. MS 5b 5.2.3.2 In graphite, each carbon Explain the properties of 0.5 Draw the structure of graphite. Model the structure of Video clip: atom forms three covalent graphite in of its structure graphite using model kits. bonds with three other and bonding. Describe the properties of carbon atoms, forming layers graphite and relate it to the Build a four-sided pyramid of hexagonal rings which Know that graphite is similar structure. (diamond) and a cube have no covalent bonds to metals in that it has (graphite) out of straws. between the layers. delocalised electrons. Students should devise a In graphite, one electron from WS 1.2 series of tests to work out each carbon atom is which shape is strongest. delocalised. 5.2.3.3 Graphene is a single layer of Recognise graphene and 0.5 Describe the structure properties Test the electrical Video clips: graphite and has properties fullerenes from diagrams and and uses of graphene. conductivity of graphite in a that make it useful in descriptions of their bonding pencil lead (risk: use low electronics and composites. and structure. Describe the structure, voltage as wood is YouTube: properties and uses of flammable). Fullerenes are molecules of Give examples of the uses of fullerenes. carbon atoms with hollow fullerenes, including carbon Students can construct a shapes. The structure of nanotubes. Describe the structure and uses paper model of a Buckyball fullerenes is based on of nanotubes. (20 paper hexagons joined hexagonal rings of carbon WS 1.2, 1.4 with 12 pentagon shaped atoms but they may also Relate the structure to the empty spaces). contain rings with five or Visualise and represent 2D properties for each of the seven carbon atoms. The and 3D forms including cases. Use rolled chicken wire to first fullerene to be representations demonstrate carbon discovered was of 3D objects. nanotubes.
dimensional representations of 3D objects. MS 5b 5.2.3.2 In graphite, each carbon atom forms three covalent bonds with three other carbon atoms, forming layers of hexagonal rings which have no covalent bonds between the layers. In graphite, one electron from each carbon atom is delocalised. Explain the properties of graphite in of its structure and bonding. Know that graphite is similar to metals in that it has delocalised electrons. WS 1.2 0.5 Draw the structure of graphite. Describe the properties of graphite and relate it to the structure. Model the structure of graphite using model kits. Build a four-sided pyramid (diamond) and a cube (graphite) out of straws. Students should devise a series of tests to work out which shape is strongest. Video clip: 5.2.3.3 Graphene is a single layer of graphite and has properties that make it useful in electronics and composites. Fullerenes are molecules of carbon atoms with hollow shapes. The structure of fullerenes is based on hexagonal rings of carbon atoms but they may also contain rings with five or seven carbon atoms. The first fullerene to be discovered was Recognise graphene and fullerenes from diagrams and descriptions of their bonding and structure. Give examples of the uses of fullerenes, including carbon nanotubes. WS 1.2, 1.4 Visualise and represent 2D and 3D forms including representations of 3D objects. 0.5 Describe the structure properties and uses of graphene. Describe the structure, properties and uses of fullerenes. Describe the structure and uses of nanotubes. Relate the structure to the properties for each of the cases. Test the electrical conductivity of graphite in a pencil lead (risk: use low voltage as wood is flammable). Students can construct a paper model of a Buckyball (20 paper hexagons joined with 12 pentagon shaped empty spaces). Use rolled chicken wire to demonstrate carbon nanotubes. Video clips: YouTube: