Understanding compounds

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  • Created by: Maddieecb
  • Created on: 30-01-14 20:54
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  • Understanding compounds
    • To separate compounds: You can use thermal decomposition or electrolysis
    • John Dalton discovered elements and atoms through carefully measuring substances in experiments.
    • Element = substance made of only one atom!
    • Compound = substance made from elements chemically joined together
    • Compounds properties are different to the properties of the elements its made from!
      • Sodium chloride = salt... SAFE
      • Sodium and chlorine = poisonous.... UNSAFE!


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