Please enable JavaScript.

Coggle requires JavaScript to display documents.

Covalent Bonding - Coggle Diagram

- - - - network of carbon atoms with 4 covalent bonds
      - does not conduct electricity - no free electrons or ions
      - rigid lattice makes diamond extremely hard - used in cutting tools e.g. saw teeth and drill bits
      - strong covalent bonds require lots of energy to break - high m.p.
    - - no bonds between layers so held together weakly. makes graphite soft/slippery - ideal as lubricatant
      - high m.p. and conducts electricity (so is used in electrodes) because there is 1 delocalised/free electron
      - 3 covalent bonds creating sheets of carbon atoms arranged in hexagons
    - - 2D because sheet is 1 atom thick
      - sheet of carbon atoms joined together in hexagons
      - one layer of graphite and it is a fullerene
  - - - cylinders of graphene so conduct electricity
      - they make tennis rackets lightweight and strong
      - high tensile strength - strengthens materials without adding much weight