Praseodymium is a chemical element with symbol Pr and atomic number 59. Praseodymium is a soft, silvery, malleable and ductile metal in the lanthanide group. It is valued for its magnetic, electrical, chemical, and optical properties.
Three reasons Praseodymium stands out
1
Used in magnets and high temperature alloys.
2
Goggles for glassblowers are tinted with its compounds to filter out the intense yellow-orange glare of molten glass.
3
Its vivid yellow compounds are used as a pigment in ceramic tiles and heat-resistant glass.
Green glass and powerful magnets
Praseodymium compounds lend glass a yellow-green color and help make goggles that filter the fierce light of glassworking. In alloys with neodymium, the element contributes to high-strength permanent magnets. Its name refers to the “leek-green twin,” a nod to both color and chemical kinship.
Recognizing Praseodymium in Elementle
If Praseodymium is the mystery element, guesses below atomic number 59 point up and guesses above it point down. Its symbol is Pr: a green letter matches the same position in that symbol, while a yellow letter belongs in another position.
The family clue turns green for lanthanide guesses. Compare Cerium (Ce), number 58 and Neodymium (Nd), number 60: they share the family clue, but their atomic numbers and symbols help you tell them apart.
Values are reference data, not a specification for every temperature, pressure, or allotrope. Unknown properties are left unavailable. Superheavy-element predictions remain uncertain.
The introduction and original editorial story are adapted from Wikipedia contributors via Periodic-Table-JSON. Element descriptions and their adaptations are available under CC BY-SA 3.0. Numerical attributes use the PubChem periodic-table dataset, retrieved September 22, 2026.