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 - Element information, properties and uses | Periodic Table
Element Arsenic (As), Group 15, Atomic Number 33, p-block, Mass 74.922. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images. Jump to main content
Arsenic | Definition, Symbol, Uses, & Facts | Britannica
Sep 26, 2024 · 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 Facts – Element As or 33 - Science Notes and Projects
Dec 3, 2023 · 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 (As) - Periodic Table
Arsenic is the 33rd element in the periodic table and has a symbol of As and atomic number of 33. It has an atomic weight of 74.92159 and a mass number of 75. Arsenic has thirty-three protons and forty-two neutrons in its nucleus, and thirty-three electrons in four shells.
Arsenic Facts: Chemical & Physical Properties - ThoughtCo
Jul 3, 2019 · Get periodic table facts on the chemical and physical properties of the element arsenic, which is used as a doping agent in solid-state devices.
WebElements Periodic Table » Arsenic » the essentials
Elemental arsenic occurs in two solid modifications: yellow, and grey or metallic, with specific gravities of 1.97, and 5.73, respectively. The element is a steel grey, very brittle, crystalline, semimetallic (metalloid) solid.
Arsenic - Toxic, Reactions, Compounds | Britannica
Sep 26, 2024 · arsenic poisoning, harmful effects of various arsenic compounds on body tissues and functions. Arsenicals are used in numerous products, including insect, rodent, and weed killers, some chemotherapeutic agents, and certain paints, wallpaper, and ceramics.
ARSENIC - Chemistry Explained
Allotropes are forms of an element with different physical and chemical properties. The more common form of arsenic is a shiny, gray, brittle, metallic-looking solid. The less common form is a yellow crystalline solid. It is produced when vapors of arsenic are cooled suddenly.
All about arsenic - Nature Chemistry
Aug 23, 2011 · If ever there was an element that epitomizes the notion that chemicals might be good or bad depending on their use, arsenic must be it. Katherine Haxton explains why.