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| 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] |
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