Praseodymium

Lanthanide · atomic number 59

59140.907662PrPraseodymiumSolidLanthanide

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.

Properties of Praseodymium

Element category	Lanthanide
Atomic number	59
Atomic mass	140.907662 u
Phase at STP	Solid
Group	3
Period	6
Block	f
Electron configuration	[Xe] 4f3 6s2
Electrons per shell	2, 8, 18, 21, 8, 2
Electronegativity (Pauling)	1.13
Melting point	1208 K (935 °C)
Boiling point	3403 K (3130 °C)
Density	6.77 g/cm3
Discovered by	Carl Auer von Welsbach

← Cerium · Periodic table · Neodymium → Nd

About the lanthanide group

The rare-earth “inner transition” metals that give strong permanent magnets, screen phosphors and catalyst polish.

Data: Periodic-Table-JSON (CC BY-SA 3.0) · stored statically on our server. https://en.wikipedia.org/wiki/Praseodymium

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15 elements: The rare-earth “inner transition” metals that give strong permanent magnets, screen phosphors and catalyst polish.

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