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Homework Help: Types of bondings

  1. May 15, 2008 #1
    Is there any rule that I can use to determine if an atom will consist of ionic bondings, covalent bondings or polar covalent bondings? I'm thinking of difference in electronegativity on the Pauling scale.
  2. jcsd
  3. May 15, 2008 #2
    you mean a compound?!

    the electronegativity difference should be more than 1.7 for the compound to be ionic.
  4. May 15, 2008 #3
    also, when there is an ion of high charge density(e.g. in AlCl3), covalency may occur.
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