Chemistry - Alkali Metals

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The Alkali Metals

  • The alkali metals are silvery, until they react with air and tarnish. This is why they are kept in oil, to prevent them tarnishing. 
  • They are soft metals and can be cut easily with a knife. 
  • They must be handled with forceps as they are corrosive (burn the skin). 
  • Lithium - Li
  • Sodium - Na
  • Potassium - K
  • Rubidium - Rb
  • Caesium - Cs
  • Francium - Fr

As you go down the Group 1, the alkali metals;

  • they become more reactive. The outer electron is more easily lost because the electron is further away from the nucleus, the attraction to the nucleus becomes…


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