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ChemicalElements.com: Protactinium
Basic information, atomic structure, and isotopes.
EnvironmentalChemistry.com: Protactinium
Atomic structure, chemical and physical properties, and table of nuclides.
It's Elemental: Protactinium
Basic physical and historical information.
WebElements: Protactinium
Extensive information on history, uses, occurrence, compounds, and properties.
Radiochemistry of Protactinium
Full text of the monograph by H. W. Kirby (Mound Laboratory, Miamisburg, Ohio). [PDF] (December 01, 1959)
[Periodic Table Mozilla]
Last update:
November 3, 2012 at 11:54:03 UTC
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