http://www.nasa.gov/audience/forstudents/9-12/features/index.html
(Sample link) National Geographichttp://www.nationalgeographic.com
Periodic Tablehttp://periodic.lanl.gov/default.htm
Expanded octetshttp://www.wwnorton.com/college/chemistry/gilbert/tutorials/ch7.htm
VSEPRHTTP://WWW.CHEM.PURDUE.EDU/GCHELP/VSEPR/STRUCTUR2.HTML
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Last Modified: Monday October 22 2007
