1. 33 As Arsenic 74.92160 P=33 N=33

2. Properties and uses of Arsenic Properties and uses of Arsenic Properties of Arsenic Properties of Arsenic Upon heating arsenic and some Upon heating arsenic and some minerals containing arsenic, it sublimes. Elemental arsenic occurs in two solid modifications: yellow, and grey or metallic. Elemental arsenic occurs in two solid modifications: yellow, and grey or metallic. With specific gravities of 1.97, and 5.73. With specific gravities of 1.97, and 5.73. Arsenic has a atomic weight of Arsenic has a atomic weight of 74.92160. 74.92160. Arsenic’s atomic number is 33. Arsenic’s atomic number is 33. Arsenic’s group is semi-metallic. Arsenic’s group is semi-metallic. Gray arsenic is a very brittle semi- metallic solid. Gray arsenic is a very brittle semi- metallic solid. Uses of Arsenic Uses of Arsenic Arsenic is used as a doping agent in solid-state devices. Arsenic is used as a doping agent in solid-state devices. Arsenic compounds are used as insecticides and in other poisons. Arsenic compounds are used as insecticides and in other poisons. Gallium arsenide is used in lasers which convert electricity into coherent light. Gallium arsenide is used in lasers which convert electricity into coherent light. Arsenic is used pyrotechny, hardening and improving the sphericity of shot, and in bronzing Arsenic is used pyrotechny, hardening and improving the sphericity of shot, and in bronzing Arsenic is in alloys used for making boiler tubes. Arsenic is in alloys used for making boiler tubes. Arsenic is in insecticides and weed- killers. Arsenic is in insecticides and weed- killers. in the electronics industry in the manufacture of semiconductors in the electronics industry in the manufacture of semiconductors

3. Facts about Arsenic Facts about Arsenic Albertus Magnus discovered Arsenic in 1250. Albertus Magnus discovered Arsenic in 1250. Schroeder published two methods of preparing elemental arsenic in 1649. Schroeder published two methods of preparing elemental arsenic in 1649. The origin of the name comes from the Greek work arsenikon meaning yellow orpiment. The origin of the name comes from the Greek work arsenikon meaning yellow orpiment. It is about the 52 nd most common chemical element on the earth. It is about the 52 nd most common chemical element on the earth. Arsenic is thought to be the most toxic, while most organic forms of arsenic are relatively less toxic. Arsenic is thought to be the most toxic, while most organic forms of arsenic are relatively less toxic. Arsenic is a naturally occurring substance. Arsenic is a naturally occurring substance. Arsenic was widely used by early alchemists and was also sometimes represented by the image of a swan.

4. Arsenic Uses Arsenic is used in Weed killers Properties Arsenic is poisonous Yellow, and grey are Arsenic’s colors Arsenic is also in lasers History Albertus Magnus founded Arsenic Info Arsenic is naturally occurring substance Arsenic is in alloys used for making boiler tubes

5. Resources Resources http://www.google.com http://www.google.com http://www.google.com http://www.chemicool.com http://www.chemicool.com http://www.chemicool.com