Arsenic

Danaysha Jones November 11th 2009 Ms. Marx Chemistry Class Grade 11 Arsenic Arsenic has the symbol AS, the atomic mass is 74.94 and the atomic number 33. Arsenic is a highly dangerous poisonous metalliod. Arsenic can also be a compound and inoic element. Arsenic is made up of three different types of metalliods. The metalliods that form Arsenic have the colors yellow, black, and grey. These three metalliods are extremely rare. They are found in free nature.

Arsenic was first documented by Albertus Magnus in 1250. Albertus Magnus”was a Dominican friar and bishop who achieved fame for his comprehensive knowledge of and advocacy for the peaceful coexistence of science religion. He is considered to be the greatest German philosopher and theologian of the Middle Ages. He was the first among medieval scholars to apply 's philosophy to Christian thought. The Roman Catholice Chruch honors him as a Doctor of Church, one of only 33 persons with that honor. He is credited with the discovery of the element arsenic he did believe that stones had occult properties. ( http://en.wikipedia.org/wiki/Albertus_Magnus).

Arsenic is not used in everyday life because it is highly dangerous, but it is used in US food and drug admission. In 2000 this compound was approved for the treatment of patients with acute promyelocytic leukemia that is resistant to ATRA. It was also used as Fowler's solution in psoriasis.[26] Recently new research has been done in locating tumours using arsenic-74 (a positron emitter) (http://en.wikipedia.org/wiki/Arsenic).