Praseodymium (Pr) is a chemical element belonging to the category Inner transition metal, with atomic number 59 and atomic mass 140.9100 u. This sheet describes its fundamental properties, periodic position and physical characteristics.
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Astronomy · Chemical element
Praseodymium
EL1N
Identity
Name: Praseodymium
Symbol: Pr
Atomic number: 59
Atomic mass: 140.9100 u
Position in the periodic table
Group: 3
Period: 6
Category: Inner transition metal
Physico-chemical properties
Standard state: Solid
Melting point: Very high (800°C to 3500°C)
Density: Medium
Electron configuration: [Xe] 4f³ 6s²
Scientific description
Praseodymium is a chemical element with symbol Pr and atomic number 59.
It belongs to the category of Inner transition metal and occupies group 3 and period 6.
Its standard atomic mass is 140.9100 u.