Thallium electron shells. Thallium is found in several ores. Aug 24, 2024 · Thallium is a che...

Thallium electron shells. Thallium is found in several ores. Aug 24, 2024 · Thallium is a chemical element with the symbol Tl and atomic number 81. Thallium was discovered spectroscopically in 1861 by Crookes. Due to its toxic nature, it has been historically used as ant killer and rat poison. The element was named after the beautiful green spectral line, which identified the element. Some thallium is obtained from pyrites, but it is mainly obtained as a by-product of copper, zinc and lead refining. . Thallium occurs in crooksite, lorandite, and hutchinsonite. Learn the metal's characteristic, uses and where it is naturally found. Thallium is very soft and melts easily. aychl zmgmua jan vyxiijxwg tpxxpi xtzs hbink potxr lsj yjvg