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Chemistry Ionic Bonds. Which is the strongest?

  1. Oct 27, 2012 #1
    1. The problem statement, all variables and given/known data
    Which has the strongest ionic bond?
    Cs2Se
    AlN
    CaI2
    Kbr

    2. Relevant equations

    Look at electronegativities

    3. The attempt at a solution

    I looked at electronegativities and found the differences.
    The largest difference was KBr. But apparently, that was wrong. See EN differences below.

    Cs2Se: 1.6
    AlN: 1.5
    CaI2: 1.5
    KBr: 1.9

    Ionic bond strength increases with increasing change in EN, correct?
    What am I doing wrong?
    Please advise if you can.
    Thanks in advance.
     
  2. jcsd
  3. Oct 27, 2012 #2
    Oh wait. I figured it out. You look at charges, not the EN difference for this part. So, AlN would be the answer.
     
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