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Isotopes of the Element Dubnium
[Click for Main Data]

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

All Known Isotopes of the Element Dubnium

Mass NumberHalf-lifeDecay ModeBranching Percentage
2551.6 secondsAlpha Decay~ 80.00
Spontaneous Fission~ 20.00
2561.9 secondsAlpha Decay<= 90.00
Spontaneous Fission<= 40.00
Electron Capture~ 35.00
2570.76 secondsAlpha Decay>= 94.00
Spontaneous Fission<= 6.00
257m1.50 secondsAlpha Decay>= 81.00
Spontaneous Fission19.00
2584.0 secondsAlpha Decay67.00
Electron Capture33.00
Spontaneous Fission< 1.00
258m20 secondsElectron Capture~ 100.00
259No Data AvailableNo Data AvailableNo 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 Fission57.00
Alpha Decay43.00
264No Data AvailableNo Data AvailableNo Data Available
265No Data AvailableNo Data AvailableNo Data Available
26773 minutesSpontaneous FissionNo Data Available
26816 hoursAlpha DecayNo Data Available
Electron CaptureNo Data Available
Spontaneous FissionNo Data Available