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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. It occurs naturally in many minerals, usually in combination with sulfur and metals, but also as a pure elemen… See more

    Allotropesgrey (most common), yellow, black (see Allotropes of arsenic)
    Appearancemetallic grey
    Phase at STPsolid
    Sublimation point887 K (615 °C, 1137 °F)
    Characteristics

    The three most common arsenic allotropes are grey, yellow, and black arsenic, with grey being the most common. Grey arsenic (α-As, space group R3m No. 166) adopts a double-layered structure consisting of many interlocked… See more

    Compounds

    Compounds of arsenic resemble, in some respects, those of phosphorus, which occupies the same group (column) of the periodic table. The most common oxidation states for arsenic are: −3 in the arsenides, which are a… See more

     
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  1. Arsenic Poisoning: Symptoms, Causes, and Treatment - Healthline

     
  2. Arsenic - World Health Organization (WHO)

    Dec 7, 2022 · Arsenic is a natural but highly toxic element that can contaminate water, food and the environment. Learn about the symptoms, risks and prevention of arsenic poisoning, and how WHO is working to reduce …

  3. Arsenic Poisoning: Causes, Symptoms & Treatment - Cleveland …

  4. Arsenic poisoning - Wikipedia

  5. Arsenic - National Institute of Environmental Health …

    3 days ago · Arsenic is a natural element that can cause health problems when exposed to water, air, food, or soil. Learn about arsenic sources, health effects, and how NIEHS studies arsenic metabolism and exposure.

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

    Sep 26, 2024 · Arsenic is a chemical element in the nitrogen group, existing in both gray and yellow crystalline forms. It has various oxidation states and applications in metallurgy, semiconductor technology, pesticides, and …

  7. Arsenic Poisoning: Symptoms, Treatment, and More

    Jul 2, 2024 · Arsenic poisoning is a type of heavy metal poisoning that can be acute or chronic. Learn about the sources, effects, and diagnosis of arsenic exposure and how to avoid it.

  8. Arsenic Toxicity - StatPearls - NCBI Bookshelf

  9. Arsenic poisoning: Causes, symptoms, and treatment

    Jan 4, 2018 · Arsenic poisoning is a rare but serious condition that occurs when a person ingests or inhales high levels of arsenic, a natural metalloid chemical. Learn about the sources, effects, diagnosis, and treatment of arsenic …

  10. Arsenic Poisoning: Causes, Symptoms, Treatment & Safe Limits

  11. Arsenic Facts – Element As or 33 - Science Notes and Projects

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

  13. The Broad Scope of Health Effects from Chronic Arsenic …

  14. Arsenic Toxicity: What Is Arsenic? | Environmental Medicine

  15. Arsenic Definition & Meaning - Merriam-Webster

  16. What are the Physiologic Effects of Arsenic Exposure?

  17. Chemical Safety and Health - World Health Organization (WHO)

  18. Facts About Arsenic - Live Science

  19. Arsenic trioxide - Wikipedia

  20. Guidance on Action Level for Inorganic Arsenic in Apple Juice