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March 28, 2015

Homework Help: Chemistry

Posted by candy on Thursday, April 2, 2009 at 5:10am.

When drawing the 'dot and cross' diagram to show the ionic bonding in aluminium oxide, Al2O3, do we place the nos "2" and "3" in front of the brackets containing the 'dot and cross' diagram, e.g 2[Al]3[O]?
I notice that some books place the "2" and "3" as subscripts while others place the nos. in front.

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