About 21,200 results
Open links in new tab
  1. Thallium - Wikipedia

    Thallium is a chemical element; it has symbol Tl and atomic number 81. It is a silvery-white post-transition metal that is not found free in nature. When isolated, thallium resembles tin, but discolors …

  2. Thallium: What Are the Symptoms of Poisoning? - MedicineNet

    Get the facts about thallium poisoning side effects, health risks and toxicity testing. Learn the metal's characteristic, uses and where it is naturally found.

  3. Thallium | Chemical Element, Poisonous Metal, Uses & Properties ...

    Feb 4, 2026 · thallium (Tl), chemical element, metal of main Group 13 (IIIa, or boron group) of the periodic table, poisonous and of limited commercial value. Like lead, thallium is a soft, low-melting …

  4. Thallium - poisoner’s poison: An overview and review of current ...

    Thallium (Tl) is a nonessential element that is homologous for aluminum, gallium, and indium in group IIIA of the periodic table. Tl, which discovered in 1861, is one of the most toxic metals (Goyer and …

  5. Thallium - Element information, properties and uses | Periodic Table

    Thallium is found in several ores. One of these is pyrites, which is used to produce sulfuric acid. Some thallium is obtained from pyrites, but it is mainly obtained as a by-product of copper, zinc and lead …

  6. Thallium Facts - Tl or Atomic Number 81 - Science Notes and Projects

    Aug 24, 2024 · Thallium is a chemical element with the symbol Tl and atomic number 81. This soft, malleable metal is part of the post-transition metals group and is known for its high toxicity. Despite …

  7. Thallium Facts, Symbol, Discovery, Properties, Uses

    Thallium (pronounced as THAL-ee-em) is a heavy metal with considerable toxic properties, represented by the chemical symbol Ti [1]. Under normal atmospheric conditions, the pure element undergoes …

  8. Thallium is a metal that is found in nature. It is used in various specialized applications in electronics, medicine, and research. Historically, it was used as a rat poison, but this use was banned in 1972 …

  9. EXPLAINER: What Is Thallium Sulphate And Why El-Rufai’s Letter To ...

    2 days ago · Thallium sulphate with a chemical formula named Tl₂SO₄ is a highly toxic chemical compound that has long been recognised by scientists and regulators as extremely dangerous to …

  10. Periodic Table of Elements: Los Alamos National Laboratory

    Thallium was discovered spectroscopically in 1861 by Crookes. The element was named after the beautiful green spectral line, which identified the element. The metal was isolated both by Crookes …