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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.
Arsenic – Atomic Mass – Atomic Weight – As - Periodic Table of ...
2020年11月21日 · Atomic mass of Arsenic is 74.9216 u. The atomic mass is the mass of an atom. The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore is tied to a certain specific isotope of an element.
Arsenic | As (Element) - PubChem
Arsenic is a chemical element with symbol As and atomic number 33. Classified as a metalloid, Arsenic is a solid at room temperature. [Ar]4s 2 3d 10 4p 3. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697.
Arsenic | Definition, Symbol, Uses, & Facts | Britannica
2025年2月7日 · By the 18th century, arsenic was well known as a unique semimetal. The abundance of arsenic in the Earth’s crust is about five grams per ton; the cosmic abundance is estimated as about four atoms per million atoms of silicon. The element is widely distributed.
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 - Periodic Table and Atomic Properties - Material …
Mass numbers of typical isotopes of Arsenic are 75. Atomic mass of Arsenic is 74.9216 u. The atomic mass is the mass of an atom. The atomic mass or relative isotopic mass refers to the mass of a single particle, and therefore is tied to a certain specific isotope of an element.
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.
Arsenic (As) - ChemicalAid
Arsenic (As) has an atomic mass of 33. Find out about its chemical and physical properties, states, energy, electrons, oxidation and more.
Atomic Data for Arsenic (As) - NIST
Arsenic (As) Atomic Data for Arsenic (As) Atomic Number = 33 Atomic Weight = 74.9216 Reference E95 : Isotope : Mass : Abundance : Spin : Mag Moment : 75 As: 74.921594: 100%: 3/2 +1.43947: As I Ground State 1s 2 2s 2 2p 6 3s 2 3p 6 3d 1 0 4s 2 4p 3 4 S ...