Ru
Ruthenium-121
Protons (Z)
44
Neutrons (N)
77
Mass number
121
Half-Life
29.0 ms
Abundance
---
Mass
120.952 u
Mass Excess
-44,620.0 keV
Spin
(3/2+)
Discovered
2010
Binding energy per nucleon
8,156 keV
Neutron separation energy
2,971 keV
Proton separation energy
16,909 keV
Decay Mode
Decay chain
- RuRuthenium-121Z 44 · N 7729.0 ms
- β⁻100%
- β⁻100%
- β⁻~100%
- β⁻99.92%
- β⁻100%
- β⁻100%
- β⁻100%