Chemical Changes

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  • Created by: iskh
  • Created on: 20-02-18 18:03
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  • Chemical Changes
    • Ionic Reactions
      • Metal and Non-Metal
        • Metal mixed witha metal or non metal is an alloy
    • Group 1 - Alkali Metals
      • Reactivity increases as you go down
      • One electron in outer shell
      • Not very dense
    • Metals
      • Nearly empty outer shells
      • Lose electrons to form positive ions
      • All metals conduct electricity because they have free electrons
      • Higher densities than non-metals
    • Noble gases - full outer shellls
      • Unreactive
    • Non-metals
      • Nearly full outer shells
      • Gain electrons to form negative ions
      • Generally don't conduct
    • Group 0 - Noble Gases
      • Full outer shells
        • Unreactive - Stable
    • Group 7 - Halogens
      • Reactivity decreases as you go down
      • Form metallic compounds
    • Covalent Bond
      • share atoms
      • Non-metal and non-metal
    • Halogen + Metal ? Ionic salt

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