allotrope of carbon

• give allotropes of carbon

  diamond, graphite, graphene and fullerenes
• describe diamond

  giant covalent structure with carbon forming four covalent bonds
• give properties of diamond

  high melting point, high boiling point, hard and do no conduct
• describe graphite

  layers of hexagonal rings with carbon forming three covalent bonds and delocalised electron
• give properties of graphite

  high melting point, soft, slippery and conduct
• describe graphene

  single layer of graphite
• give properties of graphene

  strong, light and conduct
• describe fullerenes

  hollow shapes of carbon molecules
• describe first discovered fullerene

  buckminster fullerene C60 with spherical shape
• give properties of fullerenes

  high surface area and cage molecules
• give uses of fullerenes

  catalyst - high surface area

  substance transport - cage molecules
• describe nanotubes

  cylindrical shape of carbon molecules
• give properties of nanotubes

  high length : diameter, strong and conduct
• give uses of nanotubes

  strengthen materials - high length : diameter and strong

  electronics - conduct

  nanotechnology