Let's review

Follow the links to review the periodic table.

http://www.proprofs.com/quiz-school/quizshow.php?title=first-20-elements-in-periodic-table-elements-quiz&q=1

http://chemsite.lsrhs.net/bonding/images/lewis%20dot%20tutorial.swf

http://www.middleschoolchemistry.com/multimedia/chapter4/lesson4

http://www.middleschoolchemistry.com/multimedia/chapter4/lesson5
http://www.middleschoolchemistry.com/multimedia/chapter4/lesson6