Rf
Rutherfordium-257n
Protons (Z)
104
Neutrons (N)
153
Mass number
257
Half-Life
106.0 µs
Abundance
---
Mass
257.104 u
Mass Excess
97,022.0 keV
Spin
(21/2+)
Discovered
2009
Binding energy per nucleon
7,377 keV
Neutron separation energy
5,271 keV
Proton separation energy
2,017 keV
Decay Mode
- γ→Rutherfordium-257100%
Decay chain
- RfRutherfordium-257Z 104 · N 153106.0 µs
- γ100%
- α89.3%
- α55%
- α33%
- β⁺64.7%
- EC99.88%
- α~100%
- β⁻~100%
- α~100%
- α~100%
- β⁻100%
- α~100%
- α100%
- β⁻100%
- α~100%
- α~100%
- α99.992%
- β⁻97.91%
- α100%
- β⁻100%
- α100%