Rf
Rutherfordium-253m
Protons (Z)
104
Neutrons (N)
149
Mass number
253
Half-Life
52.0 µs
Abundance
---
Mass
253.101 u
Mass Excess
93,840.0 keV
Spin
(1/2+)
Discovered
1995
Binding energy per nucleon
7,379 keV
Neutron separation energy
---
Proton separation energy
1,989 keV
Decay Mode
- SF100%
- α→Nobelium-249
Decay chain
- RfRutherfordium-253Z 104 · N 14952.0 µs
- α
- β⁺
- α75%
- β⁺51%
- 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%