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TeachMeFinance.com - explain free radicals free radicals The term 'free radicals' as it applies to the area of Earth observation can be defined as ' Atomic or molecular species with unpaired electrons or an otherwise open shell configuration, usually very reactive. Specific to atmospheric chemistry, free radicals are: short-lived, highly reactive, intermediate species produced by dissociation of the source molecules by solar ultraviolet radiation or by reactions with other stratospheric constituents. Free radicals are the key to intermediate species in many important stratosphericchain reactions in which an ozone molecule is destroyed and the radical is regenerated. See ozone'. Previous 5 Terms: Free Ground Water Free lunch (or breakfast, snack, or milk) Free market Free on board (F.O.B. or f.o.b.) Free on board (f.o.b.) Next 5 Terms: Free rider Free stocks Free Trade Agreement of the Americas (FTAA) Free trade area Free well About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.