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Isotopes of the Element Germanium

[Click for Main Data]         Proton Emission     Neutron Emission     Electron Emission     Positron Emission

Most of the isotope data on this site has been obtained from the National Nuclear Data Center.

Naturally Occurring Isotopes

Mass NumberNatural AbundanceHalf-life
7020.57%STABLE
7227.45%STABLE
737.75%STABLE
7436.50%STABLE
767.73%STABLE

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
58No Data AvailableDouble Proton Emission (suspected)   No Data Available
59No Data AvailableDouble Proton Emission (suspected)No Data Available
60> 110 nanosecondsElectron Capture with
delayed Proton Emission
No Data Available
Electron CaptureNo Data Available
6144 millisecondsElectron Capture with
delayed Proton Emission
> 58.00%
Electron Capture100.00%
62129 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
No Data Available
63150 millisecondsElectron Capture100.00%
6463.7 secondsElectron Capture100.00%
6530.9 secondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
0.01%
662.26 hoursElectron Capture100.00%
6718.9 minutesElectron Capture100.00%
68270.95 daysElectron Capture100.00%
6939.05 hoursElectron Capture100.00%
70STABLE--
7111.43 daysElectron Capture100.00%
71m20.41 millisecondsIsomeric Transition100.00%
72STABLE--
73STABLE--
73m0.499 secondsIsomeric Transition100.00%
74STABLE--
7582.78 minutesBeta-minus Decay100.00%
75m47.7 secondsIsomeric Transition99.97%
Beta-minus Decay0.03%
76STABLE--
7711.30 hoursBeta-minus Decay100.00%
77m52.9 secondsBeta-minus Decay81.00%
Isomeric Transition19.00%
7888.0 minutesBeta-minus Decay100.00%
7918.98 secondsBeta-minus Decay100.00%
79m39.0 secondsBeta-minus Decay96.00%
Isomeric Transition4.00%
8029.5 secondsBeta-minus Decay100.00%
817.6 secondsBeta-minus Decay100.00%
Beta-minus Decay100.00%
824.56 secondsBeta-minus Decay100.00%
831.85 secondsBeta-minus Decay100.00%
840.954 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
10.20%
850.56 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
14.00%
86> 150 nanosecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available
87≈ 0.14 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
No Data Available
88>= 300 nanosecondsBeta-minus Decay100.00%
89>= 300 nanoseconds   Beta-minus Decay (suspected)No Data Available
90> 635 nanosecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available
Beta-minus Decay with delayed
Double Neutron Emission
No Data Available