Rutherfordium

3 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  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

From WordNet (r) 2.0 [wn]:

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

From Elements database 20001107 [elements]:

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