Americium
Americium is a radioactive chemical element with the symbol Am and the atomic number 95. In chemistry, it is placed in a group of metal elements named the actinides. Americium is a transuranic element (Transuranic means after uranium as all the elements used after uranium are man-made). Americium does not exist in nature and has to be made by people. It has a silver color. Americium is made by bombarding a plutonium target with neutrons.