Works Cited
Water Treatment Solutions. Lenntech. Web. March 8, 2015.
The Periodic Table. Element Matters. Web. March 8, 2015.
Winter, Mark. Webelements. The University of Sheffield. Web. March 8, 2015
The Periodic Table. Element Matters. Web. March 8, 2015.
Winter, Mark. Webelements. The University of Sheffield. Web. March 8, 2015