Notes
| Isotopes of Technetium |
| Notes
|
| Technetium is one of three elements in the first 82 that have no stable isotopes. The other such elements are promethium and tungsten, although since the half-llife of tungsten is so long (2.09 x 1019 years) it is usually classed as being stable. |
 Notable Isotopes  |
|
 95mTc [52 neutrons] |
|
 Abundance: synthetic
|
|
| Half life: 61 days [ Electron Capture ]
|
|
| Decay Energy: ? MeV |
|
| Decays to 95Mo.
|
|
| Half life: 61 days [ Gamma Radiation ]
|
|
| Decay Energy: 0.204, 0.582, 0.835 MeV |
|
| Decays to ?.
|
|
| Half life: 61 days
|
|
| Decay Energy: 0.0389e MeV |
|
| Decays to 95Tc.
|
|
| 96Tc [53 neutrons] |
|
| Abundance: synthetic
|
|
| Half life: 4.3 days [ Electron Capture ]
|
|
| Decay Energy: ? MeV |
|
| Decays to 96Mo.
|
|
| Half life: 4.3 days [ Gamma Radiation ]
|
|
| Decay Energy: 0.778, 0.849, 0.812 MeV |
|
| Decays to ?.
|
|
| 97mTc [54 neutrons] |
|
| Abundance: synthetic
|
|
| Half life: 90 days
|
|
| Decay Energy: 0.965e MeV |
|
| Decays to 97Tc.
|
|
| 97Tc [54 neutrons] |
|
| Abundance: synthetic
|
|
| Half life: 2.6 x 106 years [ Electron Capture ]
|
|
| Decay Energy: ? MeV |
|
| Decays to 97Mo.
|
|
| 98Tc [55 neutrons] |
|
| Abundance: synthetic
|
|
| Half life: 4.2 x 106 years [ beta- ]
|
|
| Decay Energy: 0.4 MeV |
|
| Decays to 98Ru.
|
|
| Half life: 4.2 x 106 years [ Gamma Radiation ]
|
|
| Decay Energy: 0.745, 0.652 MeV |
|
| 99mTc [56 neutrons] |
|
| Abundance: trace
|
|
| Half life: 6.01 hours
|
|
| Decay Energy: 0.142, 0.002 MeV |
|
| Decays to 99Tc.
|
|
| Half life: 6.01 hours [ Gamma Radiation ]
|
|
| Decay Energy: 0.140 MeV |
|
|
|
| 99Tc [56 neutrons] |
|
| Abundance: trace
|
|
| Half life: 2.111 x 105 years [ beta- ]
|
|
| Decay Energy: 0.294 MeV |
|
| Decays to 99Ru.
|