Db
Dubnium-261
Protons (Z)
105
Neutrons (N)
156
Mass number
261
Half-Life
4.7 s
Abundance
---
Mass
261.112 u
Mass Excess
104,310.0 keV
Spin
(9/2+)
Discovered
1970
Binding energy per nucleon
7,357 keV
Neutron separation energy
7,431 keV
Proton separation energy
2,129 keV
Decay Mode
- SF73%
- α→Lawrencium-25727%
Decay chain
- DbDubnium-261Z 105 · N 1564.7 s
- α27%
- α100%
- β⁺~100%
- 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%