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Chemistry Forums for Students => High School Chemistry Forum => Topic started by: pharm16 on May 26, 2004, 01:07:52 PM

Title: ionic bonding
Post by: pharm16 on May 26, 2004, 01:07:52 PM

I have this question on a take home quiz, that I just cannot answer with full certainty after having looked it up in my textbook and my notes!  I really need help within the next fifteen minutes.

The question is: Arrange the following aggregates in order of decreasing ionic properties: lithium iodide, barium oxide, aluminum chloride, cesium fluoride, rubidium bromide, potassium sulfide, calcium oxide, chlorine monofluoride, diphosphorus trifluoride, and elemental fluorine.


I attempted to use Coloumb's law for this, but I noticed that the last three compounds are covalently bonded, so I don't know if I arrived at the correct answer.  Please help me!!!

My answer is calcium oxide, barium oxide, aluminum chloride, potassium sulfide, lithium iodide, rubidium bromide, cesium fluoride, diphosphorus trifluoride, chlorine monofluoride, and elemental fluorine.

Please hurry.

Thanks

Title: Re:ionic bonding
Post by: Donaldson Tan on May 26, 2004, 01:40:09 PM

Just rank them in decreasing electronegativity difference.

The higher the electronegativity difference, the greater the ionic character the chemical bond has.

Title: Re:ionic bonding
Post by: Mitch on May 26, 2004, 01:40:25 PM

We're not going to do your take home quiz for you  ::)