Group 1 - The Alkali Metals

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  • Group 1 - The Alkali Metals
    • Stored in oil so they don't react with oxygen in air
    • All have one electron on their outer shell so have similar properties.
    • React vigorously with nonmetals.
      • Reacts vigorously with chlorine and other halides to form a white compound.
        • White metal compound is soluble in water and give colourless solutions.
      • Reactions get more vigorous as you go down the group.
        • Easier to lose single outer electron
  • Softer than transition metals. Can be cut and shiny when cut.
    • Group 1 - The Alkali Metals
      • Stored in oil so they don't react with oxygen in air
      • All have one electron on their outer shell so have similar properties.
      • React vigorously with nonmetals.
        • Reacts vigorously with chlorine and other halides to form a white compound.
          • White metal compound is soluble in water and give colourless solutions.
        • Reactions get more vigorous as you go down the group.
          • Easier to lose single outer electron
  • Soon become dull. Oxide layer forms on shiny surface as oxygen reacts.
    • Softer than transition metals. Can be cut and shiny when cut.
    • Less dense to transition elements.
      • One electron on outermost shell so only need to lose one electron to get the structure of a noble gas.
        • Form ionic bonds with a 1+ charge.
          • Sodium, Lithium and Potassium all react with water to give an alkaline solution.
            • Float on top and produce hydrogen gas.
          • Potassium reacts with it so vigorously that the hydrogen catches fire, (lilac flame)
            • Float on top and produce hydrogen gas.

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