Fm
Fermium-250
Protons (Z)
100
Neutrons (N)
150
Mass number
250
Half-Life
31.0 m
Abundance
---
Mass
250.08 u
Mass Excess
74,072.0 keV
Spin
0+
Discovered
1954
Binding energy per nucleon
7,462 keV
Neutron separation energy
7,518 keV
Proton separation energy
4,397 keV
Decay Mode
- SF0.007%
Decay chain
- FmFermium-250Z 100 · N 15031.0 m
- α~100%
- α~100%
- α~100%
- α~100%
- α~100%
- α~100%
- α~100%
- α100%
- α99.98%
- β⁻100%
- β⁻99.976%
- α100%
- β⁻~100%
- β⁻~100%
- α100%