| slovo | definícia |
curium
(encz) | curium,curium n: Zdeněk Brož |
curium
(czen) | curium,curiumn: Zdeněk Brož |
curium
(gcide) | curium \curium\ n. [after Pierre and Marie Curie.]
a radioactive transuranic element of atomic number 96, having
an atomic weight of 247 for its most stable isotope
(half-life 1.6 x 10^7 years). The chemical symbol is Cm.
Note: It was first prepared in 1944 by helium-ion bombardment
of plutonium in a cyclotron by Glenn Seaborg and
colleagues in California. It has never been detected in
nature, though minute quantities may exist in uranium
deposits as a consequence of the neutron flux there.
Syn: Cm, atomic number 96.
[WordNet 1.5] |
curium
(wn) | curium
n 1: a radioactive transuranic metallic element; produced by
bombarding plutonium with helium nuclei [syn: curium,
Cm, atomic number 96] |
curium
(elements) | curium
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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