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Giant Structures Bonding (metallic bonding (Alloys are harder than pure…

- - - - what sand is made of
      - each grain is GCS of silicon and oxygen
- - - - one layer of graphite
      - 2 dimentional, one atom thick
      - incredily light and very strong so added as composite material to add strength without weight
      - conduct electricity, so good for electronics
  - - - Sphere
        
        Buckminsterfullerene
        
        1st discovered
        
        hollow sphere with 20 hexagon & 12 pentagons
        
        can be used to cage other molecules
        
        can be used to deliver drug to the body
        
        have huge surface area, good for industrial catalyst
        
        can make great lubricants
      - tube
        
        can form nanotubes, tiny cabon cylinders
        
        ratio of length to diameter is very high
        
        can conduct electricity and thermal energy
        
        high tensile strength, not break when stretched
        
        can be used in electronics or to strengthen material without much weignt, eg tennis racket
- - - - hold atoms in regular structure