Graphite

• Each carbon atom is covalently bonded to three other carbon atoms and Forms layers of hexagonal rings of carbon atoms
• There are strong covalent bonds within the layers but weak forces between the layers, this means that the layers can slip and slide over

  each other and they are slippery (can be used in pencils and lubricants)
• As one electron from each carbon does not take part in bonding, they are delocalised and therefore can carry a current / charge throughout the whole structure
• This is the structure of Graphite