Arsenic — (pronEng|ˈɑrsənɪk) is a chemical element that has the symbol As and atomic number of 33. Arsenic was first documented by Albertus Magnus in 1250cite book |last=Emsley |first=John |title=Nature s Building Blocks: An A Z Guide to the Elements |year … Wikipedia
Arsenic trioxide — Arsenic trioxide … Wikipedia
Arsenic trisulfide — Arsenic trisulfide … Wikipedia
Arsenic trichloride — Other names Arsenic(III) chloride, Arsenous trichloride, Butter of arsenic, de Valagin s solution … Wikipedia
Arsenic acid — IUPAC … Wikipedia
Arsenic pentoxide — Other names Arsenic(V) oxide Arsenic oxide Arsenic anhydride … Wikipedia
Arsenic pentafluoride — IUPAC name … Wikipedia
Arsenic tribromide — Preferred IUPAC name Arsenic tribromide … Wikipedia
Arsenic pentachloride — Identifiers … Wikipedia
arsenic — n. /ahr seuh nik, ahrs nik/; adj. /ahr sen ik/, n. 1. a grayish white element having a metallic luster, vaporizing when heated, and forming poisonous compounds. Symbol: As; at. wt.: 74.92; at. no.: 33. 2. See arsenic trioxide. 3. a mineral, the… … Universalium