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Roentgenium

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Isotopes of the Element Copernicium

[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.

Naturally Occurring Isotopes

Copernicium has no naturally occurring isotopes.

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
276No Data AvailableNo Data AvailableNo Data Available
277No Data AvailableNo Data AvailableNo Data Available
278No Data AvailableAlpha Decay (suspected)No Data Available
Spontaneous Fission (suspected)No Data Available
279No Data AvailableSpontaneous Fission (suspected)No Data Available
Alpha Decay (suspected)No Data Available
280No Data AvailableAlpha Decay (suspected)No Data Available
Spontaneous Fission (suspected)No Data Available
281No Data AvailableAlpha DecayNo Data Available
2820.50 millisecondsSpontaneous Fission100.00%
2834.0 secondsAlpha Decay>= 90.00%
Spontaneous Fission<= 10.00%
Spontaneous Fission50.00%
Alpha Decay50.00%
284101 millisecondsSpontaneous Fission100.00%
28530 secondsAlpha Decay100.00%