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 (fuels, moderators, structural materials, fission products, etc.). For full isotope data, see NNDC NuDat 3 or IAEA Nuclear Data Services.