Rf
Rutherfordium-261m
Protons (Z)
104
Neutrons (N)
157
Mass number
261
Half-Life
1.23 m
Abundance
---
Mass
261.109 u
Mass Excess
101,390.0 keV
Spin
(11/2-)
Discovered
1970
Binding energy per nucleon
7,371 keV
Neutron separation energy
5,831 keV
Proton separation energy
4,179 keV
Decay Mode
- SF
Decay chain
- RfRutherfordium-261Z 104 · N 1571.23 m
- α100%
- α85%
- EC88%
- α~100%
- β⁻~100%
- α~100%
- 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%