Praseodymium (Pr)
"Meet Praseodymium, the 'Green Twin' who brings vibrant color to your world and super strength to your tech! He's the hidden power behind dazzling greens and ultra-powerful magnets."
A memorable persona to anchor Pr in your mind.
6.77
Grams per cm³
931
Celsius (°C)
239
Radius (pm)
Daily Life Link
That special glass in welder's goggles that blocks super bright light? Praseodymium helps make it work!
Discovery & History
Year Discovered
1885
Discovered By
Carl Auer von Welsbach
Origin of Name
"The name is derived from the Greek 'prasios didymos' meaning green twin."
Technical Properties
Atomic Mass
140.908 u
Standard State
solid
Boiling Point
3520°C
Electron Configuration
[Xe] 4f36s2
1st Ionization Energy
5.464 eV
Electron Affinity
N/A
Oxidation States
"A shiny, silvery-white metal that loves to show off its gorgeous green side when it oxidizes or forms compounds."
Did You Know?
Its name, Praseodymium, is a fantastic Greek mashup meaning 'green twin' – a nod to its green compounds and its discovery as part of what was once thought to be a single element called Didymium!
This element is a master of disguise! For years, it was hidden inside another element called Didymium until it was finally separated in 1885, revealing its unique identity.
Praseodymium is a glass magician, giving stunning yellow-green colors to everything from decorative glass to specialized lenses.
Talk about eye protection! Welder's goggles often use Praseodymium-doped glass to filter out the intense yellow light emitted during welding, keeping those sparks from damaging vision.