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Darmstadtium

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The Periodic Table of Elements

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Copernicium

Isotopes of the Element Roentgenium

[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

Roentgenium has no naturally occurring isotopes.

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
2723.8 millisecondsAlpha Decay100.00%
273No Data AvailableAlpha Decay (suspected)No Data Available
2746.4 millisecondsAlpha Decay100.00%
275No Data AvailableAlpha Decay (suspected)No Data Available
276No Data AvailableSpontaneous Fission (suspected)No Data Available
Alpha Decay (suspected)No Data Available
277No Data AvailableSpontaneous Fission (suspected)No Data Available
Alpha Decay (suspected)No Data Available
2784.2 millisecondsAlpha Decay100.00%
Spontaneous FissionNo Data Available
2790.17 secondsAlpha Decay100.00%
2803.6 secondsAlpha Decay100.00%
28126 secondsSpontaneous Fission100.00%
Alpha DecayNo Data Available
2820.5 secondsAlpha Decay100.00%
Spontaneous FissionNo Data Available
283No Data AvailableSpontaneous Fission (suspected)No Data Available
Alpha Decay (suspected)No Data Available