a soft yellowish-white trivalent metallic element of the rare earth group; can be recovered from bastnasite or monazite by an ion-exchange process
A chemical element (symbol Pr) with an atomic number of 59, a soft, silvery, malleable and ductile metal, valued for its magnetic, electrical, chemical, and optical properties.
The name praseodymium comes from the Ancient Greek word prásios, meaning "leek-green," combined with the term for didymium. It was chosen to describe the element's characteristic green color.