Group 1 - The Alkali Metals

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Main trends:

As go down group 1, alkali metals:

  • become more reactive - the outer electron is more easily lost as is further from nucleus
  • have lower melting and boiling points

The alkali metals have low density. First three in group are less dense that water

They are:

  • Lithium
  • Sodium
  • Potassium
  • Rubidium
  • Caesium

Alkali metals all have one outer electron - they are very reactive and all have similar properties

The alkali metals form Ionic

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