 |
Periodic Table of Chemical Elements
Pr |
Praseodymium |
Pr | |
Atomic number |
|
59 | Atomic weight | 140.907652 amu | Density |
6.773 g/cm3 (STP) |
Melting | 931 °C |
Boiling | 3212 °C |
Covalent radius | Å |
Van der Waals radius | Å |
Ionic radius | 1.013 Å |
First ionization potential | 5.462 eV = 44054 cm-1 = 527.0 kJ/mol
|
Electron affinity | | Electronic configuration | 1s22s22p63s23p63d104s24p64d105s25p66s24f3 | Stable and very long lived isotopes | 141Pr: 100% |
Wikipedia article about Praseodymium |
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