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 when exposed to air.

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.

Thallium can enter the body through inhalation, absorption through the skin, or through ingestion. It can spread to the nervous system, liver, kidneys, adipose tissue, skin, and appendages. Acute symptoms of thallium exposure include, but are not limited …

Mar 6, 2025 · 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 element of low tensile strength.

Thallium (Tl) is one of the most toxic metals and its historic use in homicides has led it to be known as “the poisoner’s poison.” This review summarizes the methods for identifying Tl and determining its concentrations in biological samples in recently reported poisoning cases, as well as the toxicokinetics, toxicological effects ...

Thallium is a metallic element first identified and named from the brilliant green line in its flame spectrum (from Greek thetaalphalambdalambdaomicronsigma, a green shoot).

Thallium is a chemical element with symbol Tl and atomic number 81. Classified as a post-transition metal, Thallium is a solid at room temperature. [Xe]6s 2 4f 14 5d 10 6p 1. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697.

Thallium was discovered independently in 1986 by William Crookes and Claude-Auguste Lamy. Due to its toxic nature, it has been historically used as ant killer and rat poison.

Element Thallium (Tl), Group 13, Atomic Number 81, p-block, Mass 204.38. Sources, facts, uses, scarcity (SRI), podcasts, alchemical symbols, videos and images.

Thallium is the 81st element in the periodic table and has a symbol of Tl and atomic number of 81. It has an atomic weight of 204.380 and a mass number of 205. Thallium has eighty-one protons and one hundred twenty-four neutrons in its nucleus, and eighty-one electrons in six shells.