Fm
Fermium
Z = 100 · Actinide · 257.0 u
Nuclear Engineering Significance
Transuranic element; Fm-257 (t₁/₂ = 100.5 d) is the longest-lived isotope. Produced in very small quantities. Not significant in reactor engineering.
Basic properties
- Atomic number (Z)
- 100
- Standard atomic mass
- 257.0 u
- Category
- Actinide
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.