Praseodymium is a chemical element; it has symbol Pr and the atomic number 59. It is the third member of the lanthanide series and is considered one of the rare-earth metals. It is a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and …

praseodymium (Pr), chemical element, a rare-earth metal of the lanthanide series of the periodic table. Praseodymium is a moderately soft, ductile, and malleable silvery white metal.

Praseodymium (Pr) is a silvery, ductile & malleable metal element with atomic number 59 in the Periodic Table. Learn its uses, properties, electronic configuration, health effects & more.

Praseodymium was discovered in 1841. It is strong paramagnetic in nature. It is widely used as an alloying agent with magnesium to make high strength metal. It is found in house equipment like color television, lamps and glasses.

Praseodymium is soft, silvery, malleable, and ductile. It is somewhat more resistant to corrosion in air than europium, lanthanum, cerium, or neodymium, but it does develop a green oxide coating that falls off when exposed to air. As with other rare-earth metals, it should be kept under a light mineral oil or sealed in plastic.

2013年6月21日 · Praseodymium is a silvery rare-earth metal that is soft, malleable and ductile. It is one of the lanthanides. [See Periodic Table of the Elements] Although praseodymium is more resistant...

Praseodymium is a chemical element with symbol Pr and atomic number 59. Classified as a lanthanide, Praseodymium is a solid at room temperature. J.C. Slater, J Chem Phys, 1964, 41 (10), 3199-3205. DOI:10.1063/1.1725697.

What is Praseodymium. Praseodymium (pronunciation pra-see-oh-DIM-ee-em [2]), represented by the chemical symbol Pr [1], is a soft transition element [8] belonging to the family of rare earth metals [3, 4]. Naturally occurring Pr has a single stable isotope with mass number 141 [1, 3].

Praseodymium is a soft, malleable, ductile, silvery metal. Praseodymium is one of the lanthanide rare earth metals. It forms a flaky black oxide coating (Pr 6 O 11) in air. Unlike many metal oxide layers, this one does not protect the metal from further oxidation. The pale green sesquioxide, Pr 2 O 3, is not stable in air. (4)

2021年10月14日 · Praseodymium | Pr | CID 23942 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.