Bismuth types only one stable isotope, that of mass 209. A large number of radioactive isotopes are identified, The majority of them very unstable. Bismuth sulfide (Bi2S3) is a chemical compound of bismuth and sulfur,and it is considered an inorganic sulfide mineral. It is usually found like a black or https://boron-nitride95792.blogminds.com/the-zinc-sulfur-zinc-sulfide-diaries-31471833