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solubility question

Discussion in 'MCAT Study Question Q&A' started by yingao, Jul 28, 2011.

  1. yingao

    2+ Year Member

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    I dont understand why this statement is true:

    the covalent bond character between silver and the halides increases as the size of the halide increase? I thought the bonding between AgI is ionic bond....
     
  2. ih2183

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    Ionic bonds occur between atoms where electronegativity differences exceed 2 on the pauling scale. Electronegativity for halides decrease down a column, so covalent character increases as opposed to AgCl, AgBr etc. I looked up the electronegativity differences for Ag and I and it was .73<<2
     

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