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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 - 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.

  5. 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 …

  6. Arsenic | As | CID 5359596 - PubChem

    Arsenic appears as a grayish metallic solid that turns black upon exposure to air. Insoluble in water. Toxic by ingestion.

  7. Arsenic Facts, Symbol, Discovery, Properties, Common Uses

    Arsenic (pronunciation AR-s’n-ik [2]), represented by the chemical symbol or formula As [1], is a lustrous, tasteless, odorless, brittle metalloid belonging to the family of transition metals [3, 13].

  8. Arsenic (As) - Periodic Table

    Arsenic is a chemical element of the periodic table with chemical symbol As and atomic number 33 with an atomic weight of 74.9216 u and is classed as metalloid and is part of group 15 (nitrogen group).

  9. Arsenic Symbol

    Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal.

  10. ARSENIC - Chemistry Explained

    Arsenic compounds have been known since at least the days of Ancient Greece and Rome (thousands of years ago). They were used by physicians and poisoners. The compound most often used for both …