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Element Arsenic.
I thought this might be it. Table Of Contents Bohr Diagram (number 1) pg. 1 Number of electrons,protons... pg. 1 History pg. 1 Properties pg. 2 Chemical properties pg. 2 Uses pg. 3 Isotopes pg. 3 Poison of Arsenic pg. 3 Bohr Diagram (Number 2) pg. 4 Bibliography pg. 5 Bibliography Encyclopedia Americana, Copyright 1989, book 2 toxtown.nlm.nih.gov/text_version/chemical/arsenic.html www.chemicalelements.com/elements/as.html www.webelements.com/webelements/ elements/text/As/chem.html www.nsc.org/library/chemical/arsenic.htm