Praseodymium (Pr): Properties, Uses and Facts in 3D

Praseodymium is element 59 on the periodic table, a lanthanide, so it is a metal. At room temperature it is a solid. Open it in the 3D Periodic Table to spin its tile, see its electron shells and read its story.

Praseodymium (Pr) shown in the VisionVix 3D Periodic TableExplore in 3D
Praseodymium in the VisionVix 3D Periodic Table. Click the picture to open it live.

Praseodymium quick facts

Atomic number59
SymbolPr
Atomic mass140.908
CategoryLanthanide
Series and periodLanthanides, period 6
Blockf-block
State at room temperatureSolid
Electron configuration[Xe] 4f³ 6s²
Electrons per shell2, 8, 18, 21, 8, 2
Discovered1885, von Welsbach

What is praseodymium used for?

  • Didymium glass (welder's goggles)
  • High-strength magnets (Pr-Nd alloy)
  • Aircraft engine alloys

Interesting facts about praseodymium

  • The name means "green twin" in Greek. Praseodymium gives glass a vivid green colour
  • Praseodymium is one of the magnetic rare earth elements used in the strongest permanent magnets
  • High-powered NdFeB magnets actually contain significant praseodymium as well as neodymium

Praseodymium was discovered in 1885 by von Welsbach in Austria.

Where praseodymium sits on the periodic table

Praseodymium is in the lanthanide series (period 6). Tap any element to open its page.

Previous element58. CeriumNext element60. Neodymium

Other lanthanides

Praseodymium questions

What is the atomic number of praseodymium?

Praseodymium has atomic number 59, so every praseodymium atom has 59 protons in its nucleus. Its symbol is Pr and its atomic mass is 140.908.

Is praseodymium a metal?

Praseodymium is a metal. On the periodic table it is grouped as a lanthanide, found in the lanthanide series (period 6).

What is the electron configuration of praseodymium?

The electron configuration of praseodymium is [Xe] 4f³ 6s². Its electrons sit in 6 shells: 2, 8, 18, 21, 8, 2.

What is praseodymium used for?

Praseodymium is used for didymium glass (welder's goggles), high-strength magnets (pr-nd alloy) and aircraft engine alloys.

Who discovered praseodymium?

Praseodymium was discovered in 1885 by von Welsbach in Austria.

The 3D Periodic Table is made by Julian Neagu, a solo founder in London, as part of VisionVix Simulators. It is free to use in the browser on desktop and phone, with no sign-up.