Ionic Bond Strength and Electronegativity

[sleeper11]

Just had a question about determining ionic bond strength. Can you determine the strength by electronegativity (more electronegative, more stronger)? Or do you determine by (1) charges on ions (more charge, more attraction) (2) distance between ions (more separation, less attraction)?

Is electronegativity only useful for determining covalent vs ionic or can you also use it to determine ionic bond strength?

Thanks!

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[LoLCareerGoals]

You can determine the degree of "ionicness" via electronegativity. The greater the difference the more ionic character -> greater charge difference. Nothing is really black and white here. We arbitrarily draw a line at el-neg difference of 2.0 as a ionic vs polar covalent "border". I imagine if the difference goes further past 2.0 the charge delta increases and thus q1*q2 product grows.
If I had nothing else to go off of, I'd use this trend.