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Paper 1 - Bonding, Structure and Properties on Matter - Coggle Diagram

- - - - high melting/boiling points
      - DON'T conduct electricity when solid because the ions cannot move
      - DO conduct electricity when molten or in a solution because the charged ions are free to move about and carry their charge
- - - - Giant, rigid, covalent structure (lattice)
      - Each carbon atom forms 4 strong covalent bonds with other carbon atoms
      - strong covalent bonds mean very hard substance with VERY HIGH melting point
      - NO charged particles - DOESN'T conduct electricity
    - - Layers held together by WEAK INTERMOLECULAR FORCES - means layers can slide over each other making graphite soft and slippery
      - One electron from each CARBON atom is DELOCALISED - this allows graphite to conduct heat and electricity
      - Each carbon atom forms 3 covalent bonds with other carbon atoms - results in layered hexagonal structure
      - Giant Covalent Structure and VERY HIGH melting point
    - - each Oxygen atom is join to 2 Silicon atoms
      - each Silicon atom is join to 4 Oxygen atoms