- a radioactive transuranic element
Found on http://www.webdictionary.co.uk/definition.php?query=californium
A man-made element with an atomic number of 98. Symbol Cf
Found on http://www.diracdelta.co.uk/science/source/c/a/californium/source.html
<chemical> Californium. A man-made radioactive actinide with atomic symbol cf, atomic number 98, and atomic weight 251. Its valence can be +2 or +3. Californium has medical use as a radiation source for radiotherapy. ... Chemical name: Californium ... (12 Dec 1998) ...
Found on http://www.mondofacto.com/facts/dictionary?californium
a radioactive transuranic element; discovered by bombarding curium with alpha particles
Found on http://wordnetweb.princeton.edu/perl/webwn?s=californium
(Cf) (kal″ĭ-for´ne-әm) a chemical element, atomic number 98, atomic weight 249.
Found on http://www.encyclo.co.uk/local/21001
synthetic chemical element of the actinoid series of the periodic table, atomic number 98. Not occurring in nature, californium (as the isotope ... [1 related articles]
Found on http://www.britannica.com/eb/a-z/c/8
Type: Term Pronunciation: kal′i-fōr′nē-ŭm Definitions: 1. An artificial transuranium element, symbol Cf, atomic no. 98, atomic wt. 251.08; half-life of 251Cf (the most stable known isotope) is 900 years.
Found on http://www.medilexicon.com/medicaldictionary.php?t=13430
A radioactive, metallic element of the actinide series, and also a transuranic element, first made in 1950 at the University of California at Berkeley by alpha particle bombardment of the curium isotope 242
Cu. Californium presents biological dangers b...
Found on http://www.daviddarling.info/encyclopedia/C/californium.html
californium (kăl'ifôr"nēum) [from California], artificially produced, radioactive metallic chemical element; symbol Cf; at. no. 98; mass no. of most stable isotope 251; m.p. about 900°C; b.p. about 1,470°C; density unknown; valence +3. Californium is a member of the...
Found on http://www.infoplease.com/ce6/sci/A0809899.html
Synthesized, radioactive, metallic element of the actinide series, atomic number 98, relative atomic mass 251. It is produced in very small quantities and used in nuclear reactors as a neutron source. The longest-lived isotope, Cf-251, has a half-life of 800 years. It is named after the state of California, where it was first synthesize...
Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0009929.html
Californium is a radioactive metallic chemical element with the symbol Cf and atomic number 98. The element was first made in 1950 at the University of California Radiation Laboratory in Berkeley, by bombarding curium with alpha particles (helium-4 ions). It is an actinide element, the sixth transuranium element to be synthesized, and has the seco
Found on http://en.wikipedia.org/wiki/Californium
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