kurchatovium
kurchatovium kurchatovium n. [From Igor Kurchatov, a Russian scientist who worked on the atomic bomb.] A transuranic element of atomic number 104, symbol Ku; also called {rutherfordium}, symbol Rf. It is produced in very small quantities by nuclear reactions. In November 1993 the nomenclature committe of the American Chemical Society approved the name {rutherfordium} for element 104. Russsian investigators who claim to have first discovered element 104, isotope 260 (half-life 0.3 seconds) in 1964 at Dubna proposed the name kurchatovium. However, investigators at Berkely in 1969 produced several isotopes of element 104 but were unable to produce isotope 260; they reported finding isotope 257, with a half-life of 4-5 seconds, isotope 259 with a half-life of 3-4 seconds, and isotope 258 with a shorter half-life.

Syn: rutherfordium, Rf, Ku, unnilquadium, Unq, element 104, atomic number 104. [WordNet 1.5 +PJC]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • kurchatovium — [kʉr΄chə tō′vē əm] n. RUTHERFORDIUM: symbol, Ku: the name for this element originally proposed by Russian scientists * * * kur·cha·tov·i·um (kûr chə tōʹvē əm) n. The name formerly used for rutherfordium.   [After Igor Vasilyevich Kurch …   Universalium

  • kurchatovium — Symbol: Ku Competing name for unnilquadium, the 104th element, proposed by Russian scientists …   Elements of periodic system

  • kurchatovium — [kʉr΄chə tō′vē əm] n. RUTHERFORDIUM: symbol, Ku: the name for this element originally proposed by Russian scientists …   English World dictionary

  • Kurchatovium — Eigenschaften …   Deutsch Wikipedia

  • Kurchatovium — Kur|ča|tọ|vi|um, Kur|cha|tọ|vi|um […tʃ…]: svw. ↑ Kurtschatovium …   Universal-Lexikon

  • kurchatovium — Смотри Курчатовий (Ku) …   Энциклопедический словарь по металлургии

  • kurchatovium — n. Chem. = RUTHERFORDIUM. Usage: Symb.: Ku. Etymology: I. V. Kurchatov, Russ. physicist d. 1960 …   Useful english dictionary

  • rutherfordium — kurchatovium kurchatovium n. [From Igor Kurchatov, a Russian scientist who worked on the atomic bomb.] A transuranic element of atomic number 104, symbol Ku; also called {rutherfordium}, symbol Rf. It is produced in very small quantities by… …   The Collaborative International Dictionary of English

  • rutherfordium — kurchatovium kurchatovium n. [From Igor Kurchatov, a Russian scientist who worked on the atomic bomb.] A transuranic element of atomic number 104, symbol Ku; also called {rutherfordium}, symbol Rf. It is produced in very small quantities by… …   The Collaborative International Dictionary of English

  • КУРЧАТOВИЙ — (Kurchatovium) Ku, искусств. радиоактивный хим. элемент IV гр. периодич. системы, ат. н. 104; первый элемент третьей переходной серии. Стабильных изотопов не имеет. Известно 10 изотопов с мае. ч. 253 262. наиб. долгоживущий изотоп 26lKu (T1/2 1,1 …   Химическая энциклопедия

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