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more about americium
americium |
2 definitions found From WordNet r 1.6 [wn]: americium n : a radioactive transuranic metallic element; discovered by bombarding uranium with helium atoms [syn: {Am}, {atomic number 95}] From Elements database 20001107 [elements]: americium Symbol: Am Atomic number: 95 Atomic weight: (243) Radioactive metallic transuranic element, belongs to the actinoids Ten known isotopes. Am-243 is the most stable isotope, with a half-life of 7.95*10^3 years. Discovered by Glenn T. Seaborg and associates in 1945, it was obtained by bombarding {uranium}-238 with alpha particles.
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