 Web Results |
| | ChemGlobe: Protactinium
Electronic, thermal, and steric data along with an isotope table.
http://partisans.spurious.biz/~pkremer/projects/chemglobe/ptoe/_/91.html | | | LANL: Protactinium
Basic information and history.
http://periodic.lanl.gov/elements/91.html | | | Visual Elements: Protactinium
General and physical information, source, and key isotopes.
http://www.chemsoc.org/viselements/pages/protactinium.html | | | WebElements: Protactinium
Extensive information on history, uses, occurrence, compounds, and properties.
http://www.webelements.com/webelements/elements/text/Pa/key.html | | | Radiochemistry of Protactinium
Full text of the monograph by H. W. Kirby (Mound Laboratory, Miamisburg, Ohio). [PDF] (December, 1959)
http://library.lanl.gov/cgi-bin/getfile?rc000046.pdf |
| | Protactinium - Wikipedia, the free encyclopedia
Protactinium (pronounced /ˌproʊtækˈtɪniəm/) is a chemical element with the ... Protactinium-231 (which is formed by the alpha decay of uranium-235 followed by ...
http://en.wikipedia.org/wiki/Protactinium
| | | It's Elemental - The Element Protactinium
The Element Protactinium - Basic Physical and Historical Information ... Protactinium's existence was confirmed in 1918 when another isotope, ...
http://education.jlab.org/itselemental/ele091.html
| | | Protactinium
Basic information and history. ... The name protoactinium was shortened to protactinium in 1949. ... Protactinium has a bright metallic luster which it retains ...
http://periodic.lanl.gov/elements/91.html
| | | protactinium: Definition from Answers.com
protactinium n. ( Symbol Pa ) A rare, extremely toxic, radioactive element chemically similar to uranium, having 13 known isotopes, the most common
http://www.answers.com/topic/protactinium
| | | Protactinium
naturally occurring isotopes, with protactinium-231 being the most abundant. ... Protactinium was first identified in 1913 by Kasimir Fajans and O.H. Gohring ...
http://www.ead.anl.gov/pub/doc/protactinium.pdf
| | | Protactinium Summary and Analysis Summary
Protactinium summary with 10 pages of encyclopedia entries, essays, summaries, research information, and more. ... Edwards used protactinium dating to support ...
http://www.bookrags.com/Protactinium
| | | Protactinium
Protactinium-231, which is formed by the alpha decay of ... Protactinium occurs in pitchblende to the extent of about 1 part 231Pa to 10 million of ore. ...
http://www.wikipediaondvd.com/nav/art/a/j/l.html
| | | protactinium — FactMonster.com
Protactinium has 24 isotopes of which only three are found in nature. The most stable is protactinium-231 (half-life about 32,500 years); it is also ...
http://www.factmonster.com/ce6/sci/A0840296.html
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