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It's Elemental

Isotopes of the Element Technetium

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Technetium

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

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
850.5 secondsProton Emission (suspected)No Data Available
8654 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
No Data Available
872.2 secondsElectron Capture100.00%
885.8 secondsElectron Capture100.00%
88m6.4 secondsElectron Capture100.00%
8912.8 secondsElectron Capture100.00%
89m12.9 secondsElectron Capture100.00%
Isomeric Transition< 0.01%
908.7 secondsElectron Capture100.00%
90m49.2 secondsElectron Capture100.00%
913.14 minutesElectron Capture100.00%
91m3.3 minutesIsomeric Transition< 1.00%
Electron Capture100.00%
924.25 minutesElectron Capture100.00%
932.75 hoursElectron Capture100.00%
93m43.5 minutesIsomeric Transition77.40%
Electron Capture22.60%
94293 minutesElectron Capture100.00%
94m52.0 minutesElectron Capture100.00%
Isomeric Transition< 0.10%
9520.0 hoursElectron Capture100.00%
95m61 daysElectron Capture96.12%
Isomeric Transition3.88%
964.28 daysElectron Capture100.00%
96m51.5 minutesIsomeric Transition98.00%
Electron Capture2.00%
974.21×10+6 yearsElectron Capture100.00%
97m91.0 daysIsomeric Transition96.06%
Electron Capture3.94%
984.2×10+6 yearsBeta-minus Decay100.00%
992.111×10+5 yearsBeta-minus Decay100.00%
99m6.0067 hoursIsomeric Transition100.00%
Beta-minus Decay3.7×10-3 %
10015.46 secondsElectron Capture2.6×10-3 %
Beta-minus Decay100.00%
10114.02 minutesBeta-minus Decay100.00%
1025.28 secondsBeta-minus Decay100.00%
102m4.35 minutesBeta-minus Decay98.00%
Isomeric Transition2.00%
10354.2 secondsBeta-minus Decay100.00%
10418.3 minutesBeta-minus Decay100.00%
1057.6 minutesBeta-minus Decay100.00%
10635.6 secondsBeta-minus Decay100.00%
10721.2 secondsBeta-minus Decay100.00%
1085.17 secondsBeta-minus Decay100.00%
1090.86 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
0.08%
1100.92 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
0.04%
111350 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
0.85%
1120.29 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
4.00%
113160 millisecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
2.10%
114100 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission (suspected)
No Data Available
114m90 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission (suspected)
No Data Available
11583 millisecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available
11656 millisecondsBeta-minus DecayNo Data Available
11785 millisecondsBeta-minus DecayNo Data Available
118No Data AvailableBeta-minus DecayNo Data Available
119> 392 nanosecondsBeta-minus Decay with delayed
Double Neutron Emission (suspected)
No Data Available
Beta-minus DecayNo Data Available
119m392 nanosecondsBeta-minus Decay with
delayed Neutron Emission (suspected)
No Data Available
120> 394 nanosecondsBeta-minus DecayNo Data Available
120m394 nanosecondsBeta-minus Decay with
delayed Neutron Emission (suspected)
No Data Available
120m1> 394 nanosecondsBeta-minus Decay with delayed
Double Neutron Emission (suspected)
No Data Available

Citation and linking information

For questions about this page, please contact Carol McKisson.