bismuthum

Bismuthum is a chemical element with the symbol Bi and atomic number 83. It is a heavy, brittle, and silvery-white metal that is naturally found in the Earth's crust. Bismuthum is primarily obtained as a byproduct of lead, copper, tin, and gold mining. It is known for its low toxicity and is often used in cosmetics and pharmaceuticals. Bismuthum has a number of unique properties, including a high electrical resistance and a low thermal conductivity. It is also used in the production of certain types of alloys, such as those used in fire sprinkler systems and in the manufacture of certain types of ammunition. Bismuthum is not known to have any significant biological role, but it has been studied for its potential use in medicine, particularly in the treatment of gastrointestinal disorders. The element was first discovered in 1753 by the German chemist and mineralogist Claude François Geoffroy.