rutherfordium

3 definitions found

rutherfordium - Collaborative International Dictionary of English v.0.48 :

  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] kurchee

rutherfordium - WordNet (r) 2.1 (2005) :

  rutherfordium
      n 1: a radioactive transuranic element which has been
           synthesized [syn: rutherfordium, Rf, unnilquadium,
           Unq, element 104, atomic number 104]

rutherfordium - Elements (07Nov00) :

  rutherfordium
  Symbol: Rf
  Competing name for unnilquadium, the 104th element, proposed by the
  American Chemical Society.