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praseodymium

   Also found in: Dictionary/thesaurus, Financial, Acronyms, Encyclopedia, Wikipedia, Hutchinson 0.02 sec.
praseodymium /pra·seo·dym·i·um/ (Pr) (pra″ze-o-dim´e-um) chemical element, at. no. 59.
pra·se·o·dym·i·um (prz--dm-m, prs-)
n. Symbol Pr
A soft malleable ductile rare-earth element that develops a characteristic green tarnish in air and is used to color glass and ceramics yellow and in metallic alloy. Atomic number 59.
praseodymium (Pr)
[prā′sē·ōdīm′ē·əm]
Etymology: Gk, prasaios, light-green, didymos, twin
a rare earth metallic element. Its atomic number is 59, and its atomic mass is 140.91.
praseodymium (Pr) [pra″ze-o-dim´e-um]
a chemical element, atomic number 59, atomic weight 140.907. (See Appendix 6.)
praseodymium
a chemical element, atomic number 59, atomic weight 140.907, symbol Pr. See Table 6.
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China supplies at least 95 percent of the world's rare earths -- 17 chemical elements with hard-to-pronounce names such as praseodymium and yttrium -- essential for a wide range of high-tech devices and green technologies.
China corners rare earths market by AFP / AFP Asian Edition
China supplies at least 95 percent of the world's rare earths -- 17 chemical elements with hard-to-pronounce names such as praseodymium and yttrium -- essential for a wide range of high-tech devices and green technologies.
China corners rare earths market by AFP / AFP Global Edition
They’re generally clustered in a separate grouping at the bottom of the table, are known collectively as the lanthanoids, and these are their names, in order of atomic number (57-70): lanthanum, cerium, praseodymium, neodymium, promethium, samarium, europium, gadolinium, terbium, dysprosium, holmium, erbium, thulium, and ytterbium.
Why all the fuss over rare earths? by Doug Hornig / Stockhouse
 
 
 
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