Alkali metals

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  • Created by: Juliet06
  • Created on: 01-03-16 13:31
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  • Group 1- Alkali Metals
    • Sodium
      • Reacts with water to form sodium hydroxide
      • If reacted with oxygen a yellow flame is produced
      • Soluble in water
      • Found in salt (usually chloride)
      • When reacted with water it curls up into a ball and floats on the water
    • Lithium
      • Appears shiny but oxidises quickly
      • When reacted with water it fizzes and the reaction produces hydrogen
      • Reacts with water to form lithium hydroxide
    • Potassium
      • Softer and more shiny than lithium and sodium
      • Rarer and more expensive than lithium and sodium
      • Most reactive out of the three metals
      • When reacted with water where is a lilac flame and an explosive reaction
      • Reacts with water to form potassium hydroxide
    • How are group 1 metals different to typical metals?
      • Have a lower melting point
      • More reactive so have to be stored in oil
      • Tarnish (oxidise) quicker in air
    • Predict the reactivity of Rubidium, Caesium and Francium
      • They will be highly reactive because as you go down the periods of group 1 the metals get progressively more reactive. Francium would be the most reactive out of these metals.


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