Source:http://linkedlifedata.com/resource/umls/id/C0002467
MSH: Americium. A completely man-made radioactive actinide with atomic symbol Am, atomic number 95, and atomic weight 243. Its valence can range from +3 to +6. Because of its nonmagnetic ground state, it is an excellent superconductor. It is also used in bone mineral analysis and as a radiation source for radiotherapy.,CSP: completely man-made radioactive actinide with atomic symbol Am; because of its nonmagnetic ground state, it is an excellent superconductor; it is also used in bone mineral analysis and as a radiation source for radiotherapy.,NCI: A man-made radioactive element with atomic symbol Am, atomic number 95, and atomic weight 243.