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 …

Dec 22, 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 …

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 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 …

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, …

Thallium is a naturally occurring metal in the earth’s crust. It is mainly found in the environment combined with other elements such as oxygen, sulfur, and chlorine. The primary sources of …

Chemical element, Thallium, information from authoritative sources. Look up properties, history, uses, and more.

Thallium, a soft, bluish-white heavy metal, is naturally present in the Earth’s crust at low concentrations, often combined with other elements. Thallium toxicity, also known as thallium …

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 …

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.