Chemistry Ionic Bonds. Which is the strongest?

AI Thread Summary
The discussion centers on determining which compound has the strongest ionic bond among Cs2Se, AlN, CaI2, and KBr. Initially, the focus was on electronegativity differences, with KBr showing the largest difference at 1.9. However, it was clarified that ionic bond strength is more accurately assessed by considering the charges of the ions rather than just electronegativity differences. Ultimately, AlN is identified as having the strongest ionic bond due to its ionic charges. Understanding the role of ionic charges is crucial for evaluating ionic bond strength.
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Homework Statement


Which has the strongest ionic bond?
Cs2Se
AlN
CaI2
Kbr

Homework Equations



Look at electronegativities

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.
 
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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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