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Molybdenum

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Ruthenium

Isotopes of the Element Technetium

[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

Technetium has no naturally occurring isotopes.

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