It's Elemental
Isotopes of the Element Tungsten
Tungsten
Most of the isotope data on this site has been obtained from the National Nuclear Data Center. Please visit their site for more information.
Isotopes With A Known Natural Abundance
| Mass Number | Natural Abundance | Half-life |
| 180 | 0.12% | >= 6.6×10+17 years |
| 182 | 26.50% | STABLE |
| 183 | 14.31% | > 1.3×10+19 years |
| 184 | 30.64% | STABLE |
| 186 | 28.43% | > 2.3×10+19 years |
Known Isotopes
| Mass Number | Half-life | Decay Mode | Branching Percentage |
| 157 | 275 milliseconds | Electron Capture | No Data Available |
| 158 | 1.25 milliseconds | Alpha Decay | 100.00% |
| 158m | 0.143 milliseconds | Isomeric Transition | No Data Available |
| Alpha Decay | No Data Available | ||
| 159 | 7.3 milliseconds | Alpha Decay | ~ 99.90% |
| Electron Capture | ~ 0.10% | ||
| 160 | 91 milliseconds | Alpha Decay | 87.00% |
| 161 | 409 milliseconds | Alpha Decay | 73.00% |
| Electron Capture | 27.00% | ||
| 162 | 1.36 seconds | Electron Capture | 54.80% |
| Alpha Decay | 45.20% | ||
| 163 | 2.67 seconds | Electron Capture | 86.00% |
| Alpha Decay | 14.00% | ||
| 164 | 6.3 seconds | Electron Capture | 96.20% |
| Alpha Decay | 3.80% | ||
| 165 | 5.1 seconds | Electron Capture | 100.00% |
| Alpha Decay | < 0.20% | ||
| 166 | 19.2 seconds | Electron Capture | 99.96% |
| Alpha Decay | 0.04% | ||
| 167 | 19.9 seconds | Electron Capture | 99.96% |
| Alpha Decay | 0.04% | ||
| 168 | 50.9 seconds | Electron Capture | 100.00% |
| Alpha Decay | 3.2×10-3 % | ||
| 169 | 74 seconds | Electron Capture | 100.00% |
| 170 | 2.42 minutes | Electron Capture | 100.00% |
| 171 | 2.38 minutes | Electron Capture | 100.00% |
| 172 | 6.6 minutes | Electron Capture | 100.00% |
| 173 | 7.6 minutes | Electron Capture | 100.00% |
| 174 | 33.2 minutes | Electron Capture | 100.00% |
| 175 | 35.2 minutes | Electron Capture | 100.00% |
| 176 | 2.5 hours | Electron Capture | 100.00% |
| 177 | 132 minutes | Electron Capture | 100.00% |
| 178 | 21.6 days | Electron Capture | 100.00% |
| 179 | 37.05 minutes | Electron Capture | 100.00% |
| 179m | 6.40 minutes | Isomeric Transition | 99.71% |
| Electron Capture | 0.29% | ||
| 180 | >= 6.6×10+17 years | Double Electron Capture | 100.00% |
| 181 | 121.2 days | Electron Capture | 100.00% |
| 182 | STABLE | - | - |
| 183 | > 1.3×10+19 years | Alpha Decay | No Data Available |
| 183m | 5.2 seconds | Isomeric Transition | 100.00% |
| 184 | STABLE | - | - |
| 185 | 75.1 days | Beta-minus Decay | 100.00% |
| 185m | 1.67 minutes | Isomeric Transition | 100.00% |
| 186 | > 2.3×10+19 years | Double Beta-minus Decay | No Data Available |
| 186m | > 3 milliseconds | Isomeric Transition | No Data Available |
| 187 | 24.000 hours | Beta-minus Decay | 100.00% |
| 188 | 69.78 days | Beta-minus Decay | 100.00% |
| 189 | 10.7 minutes | Beta-minus Decay | 100.00% |
| 190 | 30.0 minutes | Beta-minus Decay | 100.00% |
| 190m | <= 3.1 milliseconds | Isomeric Transition | 100.00% |
| 191 | > 300 nanoseconds | Beta-minus Decay (suspected) | No Data Available |
| 192 | No Data Available | Beta-minus Decay (suspected) | No Data Available |
| 193 | > 300 nanoseconds | Beta-minus Decay (suspected) | No Data Available |
| 194 | > 300 nanoseconds | Beta-minus Decay (suspected) | No Data Available |
Citation and linking information
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