Rf
Rutherfordium-256m
Protons (Z)
104
Neutrons (N)
152
Mass number
256
Half-Life
25.0 µs
Abundance
---
Mass
256.102 u
Mass Excess
95,340.0 keV
Spin
(4-)
Discovered
2009
Binding energy per nucleon
7,381 keV
Neutron separation energy
7,061 keV
Proton separation energy
1,896 keV
Decay Mode
- γ→Rutherfordium-256100%
- SF
Decay chain
- RfRutherfordium-256Z 104 · N 15225.0 µs
- γ100%
- α0.31%
- α67.6%
- α~100%
- α75%
- α~100%
- α~100%
- α~100%
- α~100%
- α~100%
- α100%
- α100%
- β⁻100%
- β⁻64.046%
- α100%