Periodic table of the elements
CeriumPraseodymiumNeodymium
59
Pr
Praseodymium
140.90765
2
8
18
21
8
2
59
Pr
Praseodymium
140.90765
2
8
18
21
8
2
General
NamePraseodymium
SymbolPr
Number59
Chemical seriesLanthanides
Group / Period0 / 6
Blockf-block
CAS registry number7440-10-0

Physical properties
Statesolid
Density6.77 g/cm3
Melting point1208 K (935 °C, 1715 °F)
Boiling point3793 K (3520 °C, 6368 °F)
Critical point

Atomic properties
Atomic Weight140.90765 g/mol
Crystal structurehexagonal
Electronegativity1.13
Atomic radius185 pm
Atomic radius (calculated)247 pm
Electron configuration[Xe] 4f3 6s2
Electrons per shell2, 8, 18, 21, 8, 2
Number of protons59
Number of neutrons82

Other languages
SpanishPraseodimio
PortuguesePraseodímio
FrenchPraséodyme
GermanPraseodym
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RussianПразеодим
PolishPrazeodym
Chinese
Arabicبراسيوديميوم
TurkishPraseodim
DutchPraseodymium


Periodic table of the elements
CeriumPraseodymiumNeodymium