How can i find information on the human beings chemistry??
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on anatomy books, or organic chemistry books, just ask the librarian and she'll tell you for sure, but you'll have to know a lot of biology and organic chemistry...
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Refer to IUPAC's web site iupac.chemsoc.org or search on Google.
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Write the word 'radioactivity' in www.google.com.Then collect watever information u need.
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Try chemdex.\n\nhttp://www.chemdex.org/
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seriously, anybody who needs to know this shold know how to search the chemical literature. Go to Chemical Abstracts. Talk to your librarian.
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Get the CAS number.  Look it up on Chemfinder.
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Links at\n\nhttp://www.itt.edu/staff/boyter/links/index.html#CHEMISTRY_CHROMATOGRAPHY
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look up the periodic table...duh
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Biology, Chemistry, Physics, Human Anatomy
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Information for all of the elements is given at the Wikipedia. Linked below is the article for carbon, with everything you asked for.\n\nTo see similar information for a different element, change the word "Carbon" in the URL to another element.
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look in a library book or a science book...
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http://www.shodor.org/unchem/basic/stoic/index.html\nhttp://chemed.chem.purdue.edu/genchem/topicreview/bp/ch3/massmolframe.html\nhttp://www.physics.ohio-state.edu/~dvandom/Edu/Stoichiometry.GIF
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Here is a start:\n\nhttp://www.faqs.org/faqs/sci/chem-faq/part4/section-1.html\n\nwww.skillsplusinc.com/ PDF%20File%20Subweb/Classes/Class%20QA.PDF\n\nhttp://www.steris.com/resources/resources_wp.cfm\n\nwww.nature.nps.gov/im/units/ cupn/Reports/QualityAssurancePlan.pdf
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ask in chemistry category
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This site should help you.\n\nhttp://sparknotes.com/chemistry\n\nGood luck.
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STN, owned by Chemical Abstracts Society, has dozens of databases for this purpose.\nhttp://www.cas.org/stn.html\nAlso, look at the Diaglog service, by Questel.Orbit.
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Search for any chemistry website