59 Pr 140.91

Praseodymium

Category: Lanthanide | State: Solid

Atomic Properties

Atomic Number 59
Atomic Mass 140.91
Electronic Configuration [Xe] 4f³ 6s²

Periodic Table Placement

Group N/A
Period 6
Block f-block

Physical Properties & Discovery

Melting Point 935°C
Boiling Point 3520°C
Density 6.773 g/cm³
Discovered By Carl Auer von Welsbach (1885)

Frequently Asked Questions about Praseodymium