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www.chemicalelements.com/bohr/b0033.gif
Parker, Robert. "Periodic Table." Rsc. Royal Society of Charity, 2016.
www.rsc.org/periodic-table/element/33/arsenic
Theodore, Gray, Nick Mann, and Max Whitby. "Periodic Table." Periodic Table. WOLFRAM
RESEARCH, n.d. www.periodictable.com/Samples/Orpiment/s13.JPG
Winter, Mark. "Arsenic: The Essentials." Arsenic»the Essentials [WebElements Periodic Table]. WebElements. WebElement Ltd, UK., 1993. www.webelements.com/arsenic/
Newmark, Ann. Chemistry. London: Dorling Kindersley, 1993. Print
Gagnon, Steve. "Its Elemental." Jefferson Lab. Thomas Jefferson National Accelerator Facility - Office Of Science Education, 1 Sept. 2016. Web. <http://education.jlab.org/itselemental/ele033.html>.
www.chemicalelements.com/bohr/b0033.gif
Parker, Robert. "Periodic Table." Rsc. Royal Society of Charity, 2016.
www.rsc.org/periodic-table/element/33/arsenic
Theodore, Gray, Nick Mann, and Max Whitby. "Periodic Table." Periodic Table. WOLFRAM
RESEARCH, n.d. www.periodictable.com/Samples/Orpiment/s13.JPG
Winter, Mark. "Arsenic: The Essentials." Arsenic»the Essentials [WebElements Periodic Table]. WebElements. WebElement Ltd, UK., 1993. www.webelements.com/arsenic/
Newmark, Ann. Chemistry. London: Dorling Kindersley, 1993. Print
Gagnon, Steve. "Its Elemental." Jefferson Lab. Thomas Jefferson National Accelerator Facility - Office Of Science Education, 1 Sept. 2016. Web. <http://education.jlab.org/itselemental/ele033.html>.