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  1. Arsenic - Element information, properties and uses | Periodic Table

  2. Arsenic | As (Element) - PubChem

  3. Arsenic - Wikipedia

  4. Arsenic | As | CID 5359596 - PubChem

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

  6. WebElements Periodic Table » Arsenic » the essentials

  7. Arsenic (As) [33] — Chemical Element — Periodic Table

  8. Arsenic | The Periodic Table at KnowledgeDoor

  9. Arsenic (As) - Chemical Elements.com

  10. Periodic Table of Elements: Arsenic - As (EnvironmentalChemistry.com)