Open Directory - Science: Chemistry: Elements: Praseodymium

See also:

ChemicalElements.com: Praseodymium - Basic information, atomic structure, and isotopes.
EnvironmentalChemistry.com: Praseodymium - Atomic structure, chemical and physical properties, and table of nuclides.
It's Elemental: Praseodymium - Basic physical and historical information.
Lenntech: Praseodymium - Physical data, chemical properties, health and environmental effects.
Visual Elements: Praseodymium - Image, source, uses, physical information, and key isotopes.
WebElements: Praseodymium - Extensive information on history, uses, occurrence, compounds, and properties.
Wikipedia: Praseodymium - Properties of the element, including its history, applications, and characteristics.

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Last update: Wednesday, January 13, 2010 1:00:07 PM EST - edit

Open Directory - Science: Chemistry: Elements: Praseodymium

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Last update: Friday, May 4, 2012 5:54:03 PM EDT - edit