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Chemistry - Coggle Diagram

- - - - different atomic form of the same element
- - - - are homologous series
      - first four alkanes methane, ethane, propane and butane
  - - - they have the functional group COO
- - - - they decrease the activation energy
      - can be used multiple times
      - enzymes are biological catalysts
- - - - Group 1 and 2 are metals and they loose electrons to form positive ions (cations)
      - Group 6 and 7 are non metals, they gain electrons to form negative ions (anions)
    - - show how share electrons
    - - have a structure called a giant ionic lattice
      - all have similar properties
        
        high melting points
        
        high boiling points
      - when soild can't conduct electricity
      - when liquid - the ions are free to move to can conduct
  - - - means sharing electrons
      - when non-metal atoms bond together they share pairs of electrons to make these
      - polymers
        
        lots of small units are linked together to form a long molecule that has repeating sections
        
        all of the atoms in a polymer are joined by covalent bonds
      - giant covalent structures
        
        high melting and boiling points
        
        don't conduct electricity
      - Allotropes of carbon
        
        all kept together by covalent bonds
        
        are different structural forms of the same element in the same physical state
        
        are no bonds in the layers, they are held together weakly
    - - involves delocalised electrons
      - very conductive
      - alloys are harder than pure metals
- - - - Painting / coating
      - Electroplating - uses electrolysis