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It's Elemental

Isotopes of the Element Tungsten

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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 NumberNatural AbundanceHalf-life
1800.12%>= 6.6×10+17 years
18314.31%> 1.3×10+19 years
18628.43%> 2.3×10+19 years

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
157275 millisecondsElectron CaptureNo Data Available
1581.25 millisecondsAlpha Decay100.00%
158m0.143 millisecondsIsomeric TransitionNo Data Available
Alpha DecayNo Data Available
1597.3 millisecondsAlpha Decay~ 99.90%
Electron Capture~ 0.10%
16091 millisecondsAlpha Decay87.00%
161409 millisecondsAlpha Decay73.00%
Electron Capture27.00%
1621.36 secondsElectron Capture54.80%
Alpha Decay45.20%
1632.67 secondsElectron Capture86.00%
Alpha Decay14.00%
1646.3 secondsElectron Capture96.20%
Alpha Decay3.80%
1655.1 secondsElectron Capture100.00%
Alpha Decay< 0.20%
16619.2 secondsElectron Capture99.96%
Alpha Decay0.04%
16719.9 secondsElectron Capture99.96%
Alpha Decay0.04%
16850.9 secondsElectron Capture100.00%
Alpha Decay3.2×10-3 %
16974 secondsElectron Capture100.00%
1702.42 minutesElectron Capture100.00%
1712.38 minutesElectron Capture100.00%
1726.6 minutesElectron Capture100.00%
1737.6 minutesElectron Capture100.00%
17433.2 minutesElectron Capture100.00%
17535.2 minutesElectron Capture100.00%
1762.5 hoursElectron Capture100.00%
177132 minutesElectron Capture100.00%
17821.6 daysElectron Capture100.00%
17937.05 minutesElectron Capture100.00%
179m6.40 minutesIsomeric Transition99.71%
Electron Capture0.29%
180>= 6.6×10+17 yearsDouble Electron Capture100.00%
181121.2 daysElectron Capture100.00%
183> 1.3×10+19 yearsAlpha DecayNo Data Available
183m5.2 secondsIsomeric Transition100.00%
18575.1 daysBeta-minus Decay100.00%
185m1.67 minutesIsomeric Transition100.00%
186> 2.3×10+19 yearsDouble Beta-minus DecayNo Data Available
186m> 3 millisecondsIsomeric TransitionNo Data Available
18724.000 hoursBeta-minus Decay100.00%
18869.78 daysBeta-minus Decay100.00%
18910.7 minutesBeta-minus Decay100.00%
19030.0 minutesBeta-minus Decay100.00%
190m<= 3.1 millisecondsIsomeric Transition100.00%
191> 300 nanosecondsBeta-minus Decay (suspected)No Data Available
192No Data AvailableBeta-minus Decay (suspected)No Data Available
193> 300 nanosecondsBeta-minus Decay (suspected)No Data Available
194> 300 nanosecondsBeta-minus Decay (suspected)No Data Available

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For questions about this page, please contact Carol McKisson.