Chalcogen

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11	Ch e mistry Ev e ry d a y for Ev e ry on e A Note on the Term “Chalcogen” Add to Reading List Source URL: www.che.uc.edu Language: English - Date: 2009-11-08 14:49:32 Periodic table Dietary minerals Nonmetals Chalcogen Jöns Jacob Berzelius Goldschmidt classification Pyrite Inorganic chemistry Sulfur Chemistry Matter Chemical elements
12	PDF Document Add to Reading List Source URL: www.chalcogen.infim.ro Language: English - Date: 2008-08-21 08:18:11 Organofluorides Purines Cyclopropanes Bristol-Myers Squibb Reverse-transcriptase inhibitor Antiretroviral drug Nevirapine Zidovudine Efavirenz Chemistry Organic chemistry Non-nucleoside reverse transcriptase inhibitors
13	PDF Document Add to Reading List Source URL: go.hrw.com Language: English - Date: 2007-01-31 16:28:20 Chemical elements Astatine Metalloid Halogens Allotropy Polonium Chalcogen Metal Hydrogen astatide Chemistry Matter Periodic table