http://www.flashcardexchange.com/tag/isotopic www.flashcardexchange.com: isotopic Flashcards en-us Mon, 28 May 2012 05:09:04 PDT Mon, 28 May 2012 05:09:04 PDT support@flashcardexchange.com 720 http://www.flashcardexchange.com/flashcards/view/683032 Test notes on the periodic table 2008-10-20 http://www.flashcardexchange.com/flashcards/view/683032 http://www.flashcardexchange.com/flashcards/view/576455 Dawson - Int. Science - Ion & Isotopic Quiz 2008-02-15 http://www.flashcardexchange.com/flashcards/view/576455