| Element (Atom) Name | Praseodymium |
| Symbol | Pr |
| Physical state at room temperature | Solid |
| Element Classification | Metal |
| Group Name | Lanthanide |
| Period Number (Periodic table) | 6 |
| Group number (Periodic table) | None |
| Atomic number | 59 |
| Atomic weight | 140.90766 (Ref: Jlab-ele059, ciaaw-cerium, Nist-59) 140.9 (Ref: Lanl-59) |
| Atomic Radius | 239 pm (Van der Waals) (Ref: Lanl-59) |
| Density | 6.77 g/cm3.(Ref: Jlab-ele059) |
| Melting point | 931°C (Ref: Jlab-ele059) 935 °C (Ref: Lanl-59) |
| Boiling point | 3520°C (Ref: Jlab-ele059) 3130 °C (Ref: Lanl-59) |
| Electron shell configuration | 1s2 2s2 2p6 3s2 3p6 3d10 4s2 4p6 4d10 4f3 5s2 5p6 6s2 |
| Oxidation States | +3 (Ref: Jlab-ele059) 5, 4, 3, 2 (a mildly basic oxide) (Ref: Lanl-59) |
| Ionization Energy | 5.464 eV (Ref: Jlab-ele059) 5.4702 eV (Ref: Nist-59) |
| Number of Stable Isotopes | 1 |
| InChI | InChI=1S/Pr (Ref: Pubchem-59) |
| InChI Key | PUDIUYLPXJFUGB-UHFFFAOYSA-N (Ref: Pubchem-59) |
| Remarks |
REFERENCES
- Jlab-ele059: https://education.jlab.org/itselemental/ele059.html
- Lanl-59: https://periodic.lanl.gov/59.shtml
- ciaaw-cerium : https://www.ciaaw.org/cerium.htm
- Nist-59: https://physics.nist.gov/cgi-bin/Elements/elInfo.pl?element=59
- Pubchem-59: https://pubchem.ncbi.nlm.nih.gov/element/59
- science.co.il: https://www.science.co.il/elements/
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