Look up: technetium


  1. technetium
    [n] - a crystalline metallic element not found in nature
    Found op http://www.webdictionary.co.uk/definition.php?query=technetium

  2. Technetium
    A radioactive element not found in ores. Symbol Tc
    Found op http://www.diracdelta.co.uk/science/source/t/e/technetium/source.html

  3. technetium
    <radiology> Tc-99m, half-life: 6.03 hr, decay: isomeric transition, radiation: gamma, 140 keV (98%) ... (12 Dec 1998) ...
    Found op http://www.mondofacto.com/facts/dictionary?technetium

  4. technetium
    Tc noun a crystalline metallic element not found in nature; occurs as one of the fission products of uranium
    Found op http://wordnetweb.princeton.edu/perl/webwn?s=technetium

  5. technetium
    (Tc) (tek-ne´she-әm) a chemical element, atomic number 43, atomic weight 99. technetium 99m the most frequently used radioisotope in nuclear medicine, a gamma emitter having a half-life of 6.01 hours.
    Found op http://www.encyclo.co.uk/local/21001

  6. technetium
    chemical element, synthetic radioactive metal of Group VIIb of the periodic table, the first element to be artificially produced. The isotope ... [4 related articles]
    Found op http://www.britannica.com/eb/a-z/t/19

  7. Technetium
    Technetium (m {respell|tek|NEE|shee-əm}) is the chemical element with atomic number 43 and symbol Tc. It is the lowest atomic number element without any stable isotopes; every form of it is radioactive. Nearly all technetium is produced synthetically and only minute amounts are found in nature. Na...
    Found op http://en.wikipedia.org/wiki/Technetium

  8. technetium
    technetium (teknē'shēum) [Gr. technetos=artificial], artificially produced radioactive chemical element; symbol Tc; at. no. 43; mass no. of most stable isotope 98; m.p. 2,200°C; b.p. 4,877°C; sp. gr. 11.5 (calculated); valence +4, +6, or +7. Technetium is a radioactive silver...
    Found op http://www.infoplease.com/ce6/sci/A0848041.html

  9. Technetium
    Technetium is an artificial element with the symbol Tc.
    Found op http://www.probertencyclopaedia.com/browse/GT.HTM

  10. technetium
    (Tc) Type: Term Pronunciation: tek-nē′shē-ŭm Definitions: 1. An artificial radioactive element, atomic no. 43, atomic wt. 99, produced in 1937 by bombardment of molybdenum by deuterons; also a product of the fission of 235U; used extensively as a radiographic tracer in im...
    Found op http://www.medilexicon.com/medicaldictionary.php?t=89835

  11. technetium
    Silver-grey, radioactive, metallic element, atomic number 43, relative atomic mass 98.906. It occurs in nature only in extremely minute amounts, produced as a fission product from uranium in pitchblende and other uranium ores. Its longest-lived isotope, Tc-99, has a half-life of 216,000 years. It is...
    Found op http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0010179.html

  12. technetium
    1) Artificial element with the symbol tc 2) Atomic number 43 3) Metal 4) Metallic element 5) Tc
    Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/technetium/1

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