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 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:

  • Rutherfordium — (pronEng|ˌrʌðɚˈfɔrdiəm) is a chemical element in the periodic table that has the symbol Rf and atomic number 104. This is a radioactive synthetic element whose most stable known isotope is 267Rf with a half life of approximately 1.3 hours.… …   Wikipedia

  • Rutherfordium — Lawrencium ← Rutherfordium → Dubnium Hf …   Wikipédia en Français

  • rutherfordium — ● rutherfordium nom masculin (de Rutherford, nom propre) Élément chimique artificiel (Rf), de numéro atomique 104 et de masse atomique 261,1089. rutherfordium [ʀytœʀfɔʀdjɔm] n. m. ÉTYM. 1970, la Recherche, no 3, p. 268; mot angl. des États Unis,… …   Encyclopédie Universelle

  • rutherfordium — Symbol: Rf Competing name for unnilquadium, the 104th element, proposed by the American Chemical Society …   Elements of periodic system

  • rutherfordium — [ruth΄ər för′dē əm, ruth΄ər för′dē əm] n. [ModL, after Ernest RUTHERFORD Ernest + IUM] a radioactive chemical element with a very short half life: a transactinide produced by bombarding californium or plutonium with high energy nuclear particles …   English World dictionary

  • Rutherfordium — Eigenschaften …   Deutsch Wikipedia

  • 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 — rezerfordis statusas T sritis fizika atitikmenys: angl. rutherfordium vok. Rutherfordium, n rus. резерфордий, m pranc. rutherfordium, m …   Fizikos terminų žodynas

  • rutherfordium — rezerfordis statusas T sritis fizika atitikmenys: angl. rutherfordium vok. Rutherfordium, n rus. резерфордий, m pranc. rutherfordium, m …   Fizikos terminų žodynas

  • rutherfordium — /rudh euhr fawr dee euhm, fohr /, n. Chem. unnilquadium. [1969; named in honor of E. RUTHERFORD; see IUM] * * * ▪ chemical element  an artificially produced radioactive transuranium element in Group IVb of the periodic table, atomic number 104.… …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”