Bibliography-Stephen

=Bibliography:= http://www.lenntech.com/Periodic-chart-elements/C-en.htm#Atomic%20number http://www.noblemind.com/search.exe?keyword=Carbon+Number+of+Isotopes&var=2 http://www.webelements.com/webelements/elements/text/C/key.html http://www.caer.uky.edu/carbon/history/carbonhistory.shtml http://www.colby.edu/chemistry/webmo/orgo.html