Praseodymium (Pr), element 59 – Learn Acer periodic table

Lanthanide, atomic number 59.

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.

Symbol Pr. Atomic mass 140.907662 u. Group 3, period 6. Electron configuration [Xe] 4f3 6s2. Electrons per shell 2, 8, 18, 21, 8, 2. State at room temperature: Solid. Melting point 934.9 °C, boiling point 3129.8 °C. Discovered by Carl Auer von Welsbach.

Element data from Wikipedia, CC BY-SA 3.0.

Praseodymium (Pr), element 59 – Learn Acer periodic table

Praseodymium

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