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Look up: berkelium

  1. Berkelium
    Berkelium is a radioactive metallic element produced by bombarding americium 241 with helium ions. It has the symbol Bk.
    Found on http://www.encyclo.co.uk/nol.php

  2. berkelium
    [n] - a radioactive transuranic element
    Found on http://www.webdictionary.co.uk/definitio

  3. Berkelium
    A transuranic element and member of the actinide series. Symbol BkDiscoveredFirst synthesized in 1949 by the American scientific team under the American chemist Glenn T. Seaborg
    Found on http://www.diracdelta.co.uk/science/sour

  4. berkelium
    a radioactive metallic element discovered by bombarding américium 241 with helium ious-symbol Bk. Category: Chemistry • chemical element:atomic number 97 Category: Chemistry
    Found on http://www.mijnwoordenboek.nl/definition

  5. berkelium
    <chemical> Berkelium. A man-made radioactive actinide with atomic symbol bk, atomic number 97, and atomic weight 247. Its valence can be +3 or +4. Twelve isotopes have been produced with mass numbers 240-251. ... Chemical name: Berkelium ... (12 Dec 1998) ...
    Found on http://www.mondofacto.com/facts/dictiona

  6. berkelium
    Bk noun a radioactive transuranic element; discovered by bombarding americium with helium
    Found on http://wordnet.princeton.edu/perl/webwn?

  7. Berkelium
    `Bk` redirects here. For other uses of the abbreviation, see BK.` `Berkelium` ( or ) is a synthetic element with the symbol `Bk` and atomic number 97. A radioactive metallic element in the actinide series, berkelium was first synthesized by bombarding americium with alpha particles (helium ions) and was named after Berkeley, California and the University of California, Berkeley. Berkelium was the fifth transuranic el...
    Found on http://en.wikipedia.org/wiki/Berkelium

  8. berkelium
    (Bk) (burk´le-әm) a chemical element, atomic number 97, atomic weight 247.
    Found on http://www.mercksource.com/pp/us/cns/cns

  9. berkelium
    synthetic chemical element of the actinoid series of the periodic table, atomic number 97. Not occurring in nature, berkelium (as the isotope ... [1 related articles]
    Found on http://www.britannica.com/eb/a-z/b/52

  10. berkelium
    An artificial transuranium radioactive element; atomic no. 97, atomic wt. 247.07. [Berkeley, CA, city where first prepared]
    Found on http://www.stedmans.com/section.cfm/45

  11. berkelium
    (Bk) A synthetic, radioactive, metallic element of the actinide series; also a transuranic element. It was first made in 1949 by alpha particle bombardment of americium-241 by S. G. Thompson and coworkers at the University of California at Berkeley (after which it is named). It ...
    Found on http://www.daviddarling.info/encyclopedi

  12. berkelium
    berkelium (bûr'klēum) [from Berkeley], artificially produced radioactive chemical element; symbol Bk; at. no. 97; mass no. of most stable isotope 247; m.p. about 1,050°C; b.p. about 2,590°C; sp. gr. 14 (estimated); valence +3, +4. Berkelium is believed to be similar to the oth...
    Found on http://www.infoplease.com/ce6/sci/A08071


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23 November 2009

This day in history:
At sixteen minutes past five on 23rd November 1963, a British television institution was born. Doctor Who would go on to become the longest-running science-fiction programme in the world, eventually spawning twenty six seasons of adventures from 1963 to 1989. In total, eight actors have played the part of Gallifrey's most famous Time Lord. From the very first - William Hartnell in 1963 - to the very last - Paul McGann, in the 1996 TV Movie - the Doctor has wandered through time and space in his trusty time machine, an old type-40 TARDIS (Time and Relative Dimensions in Space). Although appearing to be nothing more than a battered blue police box, it is in fact vastly bigger on the inside than on the outside, and always departs with its familiar wheezing, groaning sound. read more

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