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Rutherfordium

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Isotopes of the Element Dubnium

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Most of the isotope data on this site has been obtained from the National Nuclear Data Center. Please visit their site for more information.

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
2551.6 secondsAlpha Decay80.00%
Spontaneous Fission~ 20.00%
2561.9 secondsAlpha Decay~ 70.00%
Electron Capture~ 30.00%
Spontaneous Fission~ 0.02%
2571.82 secondsAlpha Decay94.00%
Spontaneous Fission~ 6.00%
257m0.58 secondsAlpha Decay100.00%
Spontaneous FissionNo Data Available
2584.2 secondsSpontaneous Fission< 1.00%
Alpha Decay65.00%
Electron Capture35.00%
258m20 secondsElectron Capture100.00%
2590.51 secondsAlpha DecayNo Data Available
2601.52 secondsAlpha Decay>= 90.40%
Spontaneous Fission<= 9.60%
Electron Capture< 2.50%
2611.8 secondsAlpha Decay>= 82.00%
Spontaneous Fission<= 18.00%
26235 secondsAlpha Decay~ 67.00%
Spontaneous FissionNo Data Available
26327 secondsSpontaneous Fission55.00%
Alpha Decay41.00%
Electron Capture3.00%
264No Data AvailableAlpha Decay (suspected)No Data Available
265No Data AvailableAlpha Decay (suspected)No Data Available
266No Data AvailableAlpha Decay (suspected)No Data Available
Spontaneous Fission (suspected)No Data Available
26773 minutesSpontaneous Fission100.00%
26832 hoursSpontaneous Fission100.00%
269No Data AvailableAlpha Decay (suspected)No Data Available
Spontaneous Fission (suspected)No Data Available
27023 hoursSpontaneous Fission100.00%
Alpha DecayNo Data Available