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Praseodymium [Gr., =green twin], metallic chemical element; symbol Pr; at. no. 59; at. wt. 140.9077; m.p. 931°C; b.p. 3,512°C; sp. gr. about 6.8; valence +3 or +4. Praseodymium is a soft, malleable, ductile, silver-yellow metal. It exhibits allotropy; the...more
Praseodymium is a soft, silvery, malleable and ductile metal in the lanthanoid group. It is somewhat more resistant to corrosion in air than europium, ...
en.wikipedia.org/wiki/Praseodymium - Similar
The Element Praseodymium - Basic Physical and Historical Information.
education.jlab.org/itselemental/ele059.html - Similar
This WebElements periodic table page contains Essential information for the element praseodymium.
www.webelements.com/praseodymium/ - Similar
Dec 15, 2003 ... Praseodymium can be prepared by several methods, such as by calcium reduction of the anhydrous chloride of fluoride. ...
periodic.lanl.gov/elements/59.html - Similar
Feb 22, 2007 ... Comprehensive information for the element Praseodymium – Pr is provided by this page including scores of properties, element names in many ...
environmentalchemistry.com/yogi/periodic/Pr.html - Similar
chemical properties, health and environmental effects of praseodymium.
www.lenntech.com/periodic/elements/pr.htm - Similar
Basic information, atomic structure, and isotopes.
www.chemicalelements.com/elements/pr.html - Similar
Infomation on Praseodymium general properties, States, energies, appearance and Characteristics.
www.chemicool.com/elements/praseodymium.html - Similar
Praseodymium. Discovered : by Baron Auer von Welsbach in 1885. Isolated in Vienna, Austria Origin : The name is derived from the Greek 'prasios didymos', ...
www.rsc.org/chemsoc/visualelements/Pages/praseodymium... - Similar
Photographs and descriptions of many samples of the element Praseodymium in the Periodic Table.
www.periodictable.com/Elements/059/index.html - Similar
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