Praseodymium
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Praseodymium is a chemical element; it has symbol Pr and 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, mallea
Praseodymium
Praseodymium(III) hydroxide
Carl Auer von Welsbach (1858–1929), discoverer of praseodymium in 1885.
Neodymium
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Neodymium is a chemical element; it has symbol Nd and atomic number 60. It is the fourth member of the lanthanide series and is considered to be one of the rare-earth metals. It is a hard, slightly ma
Praseodymium
…the Austrian chemist Carl Auer von Welsbach separated didymium into two elements that gave salts of different colours, which he named praseodymium and neodymium. The name praseodymium comes from the Ancient Greek πράσινος (prasinos), meaning 'leek-green', and δίδυμος (didymos) 'twin'. Like most rare-earth…
Neodymium metal in a glass vial
Neodymium(III) sulfate
Neodymium acetate powder
Neodymium(III) hydroxide powder