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. Health A-Z

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.

Feb 24, 2025 · Thallium is odorless, colorless, and highly toxic by damaging cells and organs—especially the nervous system. Its symptoms range from nausea to hair loss and nerve damage, but these can quickly escalate to more severe issues like organ failure.

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 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 by Sir William Crookes in 1861. It is a soft, heavy, inelastic metal. Thallium is tasteless and odorless and has been used by murderers as a difficult to detect poison. It is found in trace amounts in the earth’s crust.

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

Thallium is a greyish color post-transition metal. It is soft and can be cut with a knife. Thallium is malleable. Freshly isolated thallium looks like tin and is readily discolored (becomes bluish-grey) and loses it shine when exposed to air. It is quite dense and have a density of 11.85 g/cm 3.