Fermium is a synthetic element with the symbol Fm and atomic number 100. It was first discovered in 1952 by a team of scientists who were studying the debris from a hydrogen bomb explosion. Fermium is part of the actinide series and is classified as a radioactive metal. It is not found naturally in the environment and can only be produced in nuclear reactors or during nuclear explosions. Due to its radioactivity, fermium has limited practical applications and is primarily used for research purposes. It has several isotopes, with fermium-257 being the most stable and commonly studied. Scientists continue to explore its properties to better understand the behavior of heavy elements and their potential uses in advanced technologies.