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  1. Arsenic - Wikipedia

    Arsenic is a chemical element; it has the symbol As and atomic number 33. It is a metalloid and one of the pnictogens, and therefore shares many properties with its group 15 neighbors phosphorus and …

  2. Arsenic | Definition, Symbol, Uses, & Facts | Britannica

    Jan 2, 2026 · 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 …

  3. 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 …

  4. 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 …

  5. What is Arsenic? - Arsenic - University of Maine

    Arsenic (As) is an element, which means that it is a chemical that can’t be broken down into simpler chemicals (so it is not a compound or molecule that is made up of other elements).

  6. Arsenic | As (Element) - PubChem

    Chemical element, Arsenic, information from authoritative sources. Look up properties, history, uses, and more.

  7. Arsenic Element Facts - chemicool.com

    The chemical element arsenic is classed as a metalloid. It has been known since ancient times. Its discoverer and discovery date are unknown.

  8. Chemical Elements.com - Arsenic (As)

    Chemical Element.com - Arsenic. Feb. 9, 2026 <http://www.chemicalelements.com/elements/as.html>. For more information about citing online sources, please visit the MLA's Website.

  9. Which chemical element has the symbol As? - Vocab Dictionary

    The chemical element that has the symbol ‘As’ is Arsenic. Arsenic is a metalloid, which means it has properties that are intermediate between metals and non-metals. It is commonly found in nature, …

  10. What element has symbol As? - Answers

    The answer is arsenic and this is a solid chemical element, atomic number 33 and its atomic weight is 74,921 60 (2). Arsenic is a metalloid.