gcse science chemistry unit C4

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  • Created by: charlie
  • Created on: 30-04-13 21:54
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  • C4
    • history of the atom
      • 1800's- solid spheres
        • 1897- plum pudding
          • 1909- gold foil experiment
      • rutherford- nucleus
      • bohr model- shells
    • periodic table groups
      • reactive metals
        • group 1
          • alkali metals
            • LITHIUM- RED FLAME
            • SODIUM- YELLOW/ORANGE
            • POTASSIUM- LILAC FLAME
          • low MP+BP
          • low density
          • v.soft
          • down with reactivity
          • + cold water= H2
      • transition elements
      • non metals
        • halogens
          • GROUP 7
          • down less reactive
      • other metals
      • noble gases
    • history of the periodic table
      • 1800's atomic mass order- 3 triads
        • 1864- octaves - 7 rows
          • 1869- order in atomic mass
    • isotopes
      • same no. P
      • diff no. N
    • water purity
      • purified
        • filtration
          • sedimentation
            • chlorination
      • pollutants
        • nitrates (fertilisers)
        • lead compounds (pipes)
        • pesticide (spraying near lake)
      • poor countries
        • expensive
        • needs lots of energy
    • testing for ions
      • sulphate ions
        • barium chloride- white precip.
      • halide ions- sliver nitrate
        • chloride-  white precip
        • bromide - cream precip
        • iodide- pale yellow prcip.
    • checking for gases
      • co2
        • bubble limewater cloudy
      • o2
        • relit red splint
      • H2
        • popping
    • thermal decomposition
      • breaking down with heat
      • endothermic
      • colour change
    • transition metals
      • test for transition metals
        • copper(II) hydroxide- blue
        • iron(II) hydroxide- grey/green
        • Iron(III) hydroxide- orange/brown
      • make good catalysts
      • compound colourful
        • iron(III)- rust
        • copper- blue
    • bonding
      • ionic bonding
        • lose/ gain e-
          • ions
        • ionic lattices
          • cant move
          • cant conduct
          • chemical bond
        • metal+non metal
      • covalent bonding
        • simple molecular structure
        • in molecules- strong bongs
        • between molecules- weak attraction
        • no free e-
        • non metals
    • metals
      • crystal structure
        • metallic bond
      • outer e- moves freely
        • good conductors
      • High BP, MP, density
      • malleable
    • super conductors
      • v. low temp metal
      • no resistance
      • current flow forever
      • -256 degrees Celsius
        • expensive
  • precipitation
    • C4
      • history of the atom
        • 1800's- solid spheres
          • 1897- plum pudding
            • 1909- gold foil experiment
        • rutherford- nucleus
        • bohr model- shells
      • periodic table groups
        • reactive metals
          • group 1
            • alkali metals
              • LITHIUM- RED FLAME
              • SODIUM- YELLOW/ORANGE
              • POTASSIUM- LILAC FLAME
            • low MP+BP
            • low density
            • v.soft
            • down with reactivity
            • + cold water= H2
        • transition elements
        • non metals
          • halogens
            • GROUP 7
            • down less reactive
        • other metals
        • noble gases
      • history of the periodic table
        • 1800's atomic mass order- 3 triads
          • 1864- octaves - 7 rows
            • 1869- order in atomic mass
      • isotopes
        • same no. P
        • diff no. N
      • water purity
        • purified
          • filtration
            • sedimentation
              • chlorination
        • pollutants
          • nitrates (fertilisers)
          • lead compounds (pipes)
          • pesticide (spraying near lake)
        • poor countries
          • expensive
          • needs lots of energy
      • testing for ions
        • sulphate ions
          • barium chloride- white precip.
        • halide ions- sliver nitrate
          • chloride-  white precip
          • bromide - cream precip
          • iodide- pale yellow prcip.
      • checking for gases
        • co2
          • bubble limewater cloudy
        • o2
          • relit red splint
        • H2
          • popping
      • thermal decomposition
        • breaking down with heat
        • endothermic
        • colour change
      • transition metals
        • test for transition metals
          • copper(II) hydroxide- blue
          • iron(II) hydroxide- grey/green
          • Iron(III) hydroxide- orange/brown
        • make good catalysts
        • compound colourful
          • iron(III)- rust
          • copper- blue
      • bonding
        • ionic bonding
          • lose/ gain e-
            • ions
          • ionic lattices
            • cant move
            • cant conduct
            • chemical bond
          • metal+non metal
        • covalent bonding
          • simple molecular structure
          • in molecules- strong bongs
          • between molecules- weak attraction
          • no free e-
          • non metals
      • metals
        • crystal structure
          • metallic bond
        • outer e- moves freely
          • good conductors
        • High BP, MP, density
        • malleable
      • super conductors
        • v. low temp metal
        • no resistance
        • current flow forever
        • -256 degrees Celsius
          • expensive
    • solid in solution
  • iron(II)- green

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