Symbol: Cm
Atomic number: 96
Atomic weight: (247)
Radioactive metallic transuranic element. Belongs to actinoid series. Nine known isotopes, Cm-247 has a half-life of 1.64*10^7 years. First identified by Glenn T. Seaborg and associates in 1944, first produced by L.B. Werner and I. Perlman in 1947 by bombarding americium-241 with neutrons. Named for Marie Curie.
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Element Isotope Neutron
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