Fm
Fermium-245
Protons (Z)
100
Neutrons (N)
145
Mass number
245
Half-Life
4.2 s
Abundance
---
Mass
245.075 u
Mass Excess
70,190.0 keV
Spin
(1/2+)
Discovered
1967
Binding energy per nucleon
7,466 keV
Neutron separation energy
6,841 keV
Proton separation energy
3,129 keV
Decay Mode
- SF<0.3%
Decay chain
- FmFermium-245Z 100 · N 1454.2 s
- α100%
- α15%
- β⁺
- β⁺99.975%
- EC99.996%
- α~100%
- β⁻100%
- α~100%
- α100%
- β⁻100%
- α~100%
- α~100%
- α99.992%
- β⁻97.91%
- α100%
- β⁻100%
- α100%