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Arsenic**

__General Info__

 * Arsenic was isolated in 1250 A.D. by Albertus Magnus.
 * first used by the ancients in Alchemy
 * Discovered in Ancient Greece and Rome
 * Male, based on the belief that metals were different sexes

__Properties and Appearance__

 * Freezing Point- 814 degrees Celcius
 * Boiling Point- 613 degrees Celcius
 * Steel gray or yellow
 * crystalline, semimetallic
 * very brittle
 * poisonous
 * oxidizes to arsenous oxide which smells of garlic
 * At earth temperatures, most commonly found as a solid
 * Arsenic is moderately common
 * Arsenic is most common as a solid at earth temperatures

__Classification and Isotopes__

 * Arsenic is a metal
 * Arsenic has only one naturally occuring Isotope, arsenic-75

__Uses and Cost__

 * Bronzing
 * Pyrotechnics
 * Used for hardening and improving roundness of shot
 * Insectides and poisons
 * Gallium arsenide is used as a laser material to convert electricity to light
 * Cost- 17 copper per pound

__Jing Screencast__
media type="file" key="Jing Arsenic.swf"

__References__
http://periodic.lanl.gov/elements/33.html http://pt.chemicalstore.com/As%20-%20Arsenic.html [|www.periodic-table.org.uk/] [|www.chemicalelements.com] Chemical elements, by David E. Newton [|http://books.google.com/books?id=q-RXAAAAMAAJ&pg=PA135&lpg=PA135&dq=cost of arsenic per oz&source=web&ots=GxZfOT8UWP&sig=UlNs_bUQpGrR6]0Jj-xf4atZvXzM&hl=en&sa=X&oi=book_result&resnum=5&ct=result#PPA135,M1