Giant Covalent Structures

Cards (11)

  • Diamond
    4 Carbon to Carbon Bonds
    Strong Covalent Bonds
    Forms Regular Lattice
    No delocalised electrons 
  • Diamond
    High melting point/Hard as strong covalent bonds hold the structure/Doesn’t conduct electricity/Used for diamond tipped glass cutters and oil rig drills
  • Graphite
    3 Carbon to Carbon Bonds
    Forms layer of hexagonal rings
    No covalent bonds between layers 
    One delocalised electron 
  • Graphite
    Conducts electricity
    Weak intermolecular Forces between layers are weak so they slide over one another so they are soft/slippery
    Used as lubricant
  • Silica(Silicone Dioxide)

    Silicon and oxygen atoms
    Strong covalent bonds in regular arrangement
  • Silica(Silicone Dioxide)
    High melting and boiling point
    Doesn’t conduct electricity
  • Fullerenes
    Hollow shapes based on hexagonal rings joined by covalent bonds
  • Fullerenes
    Buckiminster fullerene (spherical):weak intermolecular forces so low melting point and slippery
  • Graphene
    Single layer of graphite 
    Strong covalent  bonds
    Strong 
    Delocalised electron 
  • Graphene
    Conducts electricity
    High melting point 
    Used for making composites and in electronics
  • Graphene
    Layer of Graphene is called a nanotube.High length to diameter ratio,conduct electricity and have high tensile strength(strong in tension)Used for nanotechnology,electronics