| Symbol |
Pr |
|
| Atomic Number |
59 |
Relative Atomic Mass
12C = 12.0000 |
140.90765 |
Atomic Radius
pm |
183 |
First Ionisation Energy
kJ mol-1 |
523.1 |
| Electronegativity |
1.13 |
Density
kg m-3 |
6773 [293 K] |
Molar Volume
cm3 |
20.80 |
Thermal Conductivity
W m-1 K-1 |
12.5 [300 K] |
Melting Point
K |
1204 |
Boiling Point
K |
3785 |
| Number of Isotopes |
26 |
Ground State Electron
Configuration |
[Xe]4f86s2 |
| Term Symbol |
4I9/2 |
| Discovery |
Baron Auer von Welsbach (Vienna, Austria) in 1885 |
| Name Derived From |
Greek prasios didymos meaning 'green twin' |
Name in Other
Languages |
 Croatian | Praseodimij |
 Danish | praseodym |
 Dutch | praseodymium |
 Finnish | praseodyymi |
 French | praséodyme |
 German | Praseodym |
 Italian | praseodimio |
 Norwegian | praseodym |
 Portuguese | praseodímio |
 Spanish | praseodimio |
 Swedish | praseodym |
| Peter van der Krogt's Element Multidict - element name translations in over 48 langauges |
