Number of the records: 1
plutónium
Subject h. plutónium Subject h. Plutonium Scope note in English A naturally radioactive element of the actinide metals series. It has the atomic symbol Pu, and atomic number 94. Plutonium is used as a nuclear fuel, to produce radioisotopes for research, in radionuclide batteries for pacemakers, and as the agent of fission in nuclear weapons. 
subject heading
Number of the records: 1