an extremely radioactive, metallic chemical element, one of the actinides, generally produced by neutron bombardment of plutonium or americium: symbol, Cm; at. no. 96
Origin of curiumModL, after Pierre and amp; Marie Curie + -ium: so named in their honor (1946) by G. T. Seaborg, its discoverer, by analogy with the corresponding rare earth gadolinium
A silvery metallic synthetic radioactive transuranic element, having isotopes with mass numbers ranging from 233 to 252. The most stable isotope (Cm-247) has a half-life of 15.6 million years. Atomic number 96; melting point 1,345°C; specific gravity (calculated) 13.51; valence 3, 4. See Periodic Table.
Origin of curiumAfter Marie Curie and Pierre Curie.
- A transuranic chemical element (symbol Cm) with an atomic number of 96.
Named after Pierre and Marie Curie.