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Isotopes of the Element Rutherfordium
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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.

All Known Isotopes of the Element Rutherfordium

Mass NumberHalf-lifeDecay ModeBranching Percentage
25348 microsecondsSpontaneous Fission<= 100.00
Alpha DecayNo Data Available
253m≈ 1.8 secondsSpontaneous Fission~ 50.00
Alpha Decay~ 50.00
25423 microsecondsSpontaneous Fission<= 100.00
2551.5 secondsAlpha Decay52.00
Spontaneous Fission48.00
255m0.8 secondsAlpha Decay<= 100.00
2566.4 millisecondsSpontaneous Fission99.68
Alpha Decay0.32
2574.7 secondsAlpha Decay< 100.00
Spontaneous Fission<= 1.40
Electron Capture> 0.00
257m3.9 secondsAlpha Decay< 100.00
Spontaneous Fission<= 1.40
Electron Capture> 0.00
25812 millisecondsSpontaneous Fission87.00
Alpha Decay13.00
2593.2 secondsAlpha Decay92.00
Spontaneous Fission8.00
26021 millisecondsSpontaneous Fission<= 100.00
Alpha DecayNo Data Available
26165 secondsAlpha Decay> 80.00
Electron Capture< 15.00
Spontaneous Fission< 10.00
2622.3 secondsSpontaneous Fission<= 100.00
26310 minutesSpontaneous Fission~ 100.00
Alpha DecayNo Data Available
264No Data AvailableNo Data AvailableNo Data Available
2671.3 hoursSpontaneous Fission100.00