Chemistry

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  • Created by: wierdo09
  • Created on: 09-06-14 18:55

Chemistry

  • Elements = same number of electrons = react in a similiar way
  • Mendeleev arranged elements - increasing atomic mass. Elements in the same period - same properties = similar electronic stucture.
  • Bonding

Positive and negative ions ->held by electrostaic attraction

  • Metals - positive ions - called cations
  • Non - metals = negative ions -> anions

Negative ion -> ends in -ide,       Negative ion containing oxygen -> ends in -ate

       e. g pottasium bromide                         e.g. Magnesium carbonate

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