Pr
Praseodymium
Z = 59 · Lanthanide · 140.9 u
Nuclear Engineering Significance
Fission product (Pr-141 is stable, high-yield). Pr-143 (t₁/₂ = 13.6 d) is tracked in fission product inventory calculations. Not otherwise significant in reactor engineering.
Basic properties
- Atomic number (Z)
- 59
- Standard atomic mass
- 140.9 u
- Category
- Lanthanide
Isotopes & cross-section data
No nuclide data for this element in the reference database.
The NRDP database focuses on nuclides relevant to reactor physics. For full isotope data, see NNDC NuDat 3.