Arsenic - Element information, properties and uses | Periodic Table
Arsenic, atomic number 33 lies in between phosphorus and antimony in group 15, the so called Nitrogen group of the periodic table. Members of the group including of course nitrogen, along with arsenic, phosphorous, antimony and bismuth are particularly stable in compounds because they tend to form double or triple covalent bonds.
Arsenic - Wikipedia
Arsenic is a chemical element with the symbol As and the atomic number 33. It is a metalloid and one of the pnictogens, and therefore shares many properties with its group 15 neighbors phosphorus and antimony. Arsenic is a notoriously toxic heavy metal.
Arsenic | Definition, Symbol, Uses, & Facts | Britannica
3 天之前 · Arsenic, a chemical element in the nitrogen group (Group 15 [Va] of the periodic table), existing in both gray and yellow crystalline forms. Its chemical symbol is As, and it was first clearly identified as a free substance in 1649 by German pharmacist Johann Schroeder.
Arsenic | As (Element) - PubChem
Elemental arsenic occurs in two solid modifications: yellow, and gray or metallic, with specific gravities of 1.97, and 5.73, respectively. It is believed that Albertus Magnus obtained the element in 1250 A.D.
Arsenic | As | CID 5359596 - PubChem
Arsenic is a naturally occurring element widely distributed in the earth's crust. In the environment, arsenic is combined with oxygen, chlorine, and sulfur to form inorganic arsenic compounds. Arsenic in animals and plants combines with carbon and hydrogen to …
Arsenic (As) [33] — Chemical Element — Periodic Table
Get the facts about element Arsenic (As) [33] from the periodic table. Find physical data, electron configuration, chemical properties, aggregation states, isotope data (including decay trees) as well as some historic information.
WebElements Periodic Table » Arsenic » the essentials
Arsenic atoms have 33 electrons and the shell structure is 2.8.18.5. The ground state electronic configuration of neutral arsenic is [Ar]. 3d10. 4s2. 4p3 and the term symbol of arsenic is 4S3/2. Elemental arsenic occurs in two solid modifications: yellow, and grey or metallic, with specific gravities of 1.97, and 5.73, respectively.
Arsenic Facts – Element As or 33 - Science Notes and Projects
2023年12月3日 · Arsenic is a chemical element with the symbol As and atomic number 33, making it a part of the pnictogen or nitrogen group in the periodic table. This metalloid element is notorious for its toxicity. Arsenic exhibits a wide range of properties and plays diverse roles in both ancient and modern times.
Arsenic, atomic structure - C018/3714 - Science Photo Library
Arsenic (As). Diagram of the nuclear composition, electron configuration, chemical data, and valence orbitals of an atom of arsenic-75 (atomic number: 33), the most common isotope of this element. The nucleus consists of 33 protons (red) and 42 neutrons (orange). 33 electrons (white) successively occupy available electron shells (rings).
Arsenic (As) - American Elements
Arsenic has numerous applications as a semiconductor and other electronic applications as Indium arsenide, silicon arsenide and tin arsenide. Arsenic is finding increasing uses as a doping agent in solid-state devices such as transistors. Gallium arsenide is a semiconductor material frequently used in optoelectronic applications.