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Pr
Praseodymium
Z
59
140.908 g/mol
Lanthanide
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Overview
Atomic Properties
Thermodynamics
Electromagnetism
Isotopes
Group
3
Period
6
Block
f
Occurrence
Primordial
Biological Role
---
History
1885 (discovery)
Carl Auer von Welsbach
Named By
Carl Auer von Welsbach
Latin Name
Praseodymium
Abundance
Universe
< 0.0001%
0.002 ppm
x
Sun
< 0.0001%
0.001 ppm
x
Meteorites
< 0.0001%
0.1 ppm
x
Earth's crust
0.00092%
9.2 ppm
x
Oceans
< 0.0001%
< 0.0001 ppm
x
Humans
---
x
58
Ce
60
Nd
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