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It's Elemental

Isotopes of the Element Chlorine

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Chlorine

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
3575.76%STABLE
3724.24%STABLE

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
28No Data AvailableProton Emission (suspected)No Data Available
29< 20 nanosecondsProton EmissionNo Data Available
30< 30 nanosecondsProton EmissionNo Data Available
31150 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
0.70%
32298 millisecondsElectron Capture100.00%
Electron Capture with
delayed Alpha Decay
0.05%
Electron Capture with
delayed Proton Emission
0.03%
332.511 secondsElectron Capture100.00%
341.5264 secondsElectron Capture100.00%
34m32.00 minutesElectron Capture55.40%
Isomeric Transition44.60%
35STABLE--
363.01×10+5 yearsElectron Capture1.90%
Beta-minus Decay98.10%
37STABLE--
3837.24 minutesBeta-minus Decay100.00%
38m715 millisecondsIsomeric Transition100.00%
3956.2 minutesBeta-minus Decay100.00%
401.35 minutesBeta-minus Decay100.00%
4138.4 secondsBeta-minus Decay100.00%
426.8 secondsBeta-minus Decay100.00%
433.13 secondsBeta-minus Decay100.00%
440.56 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
< 8.00%
45413 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
24.00%
46232 millisecondsBeta-minus Decay with
delayed Neutron Emission
60.00%
Beta-minus Decay100.00%
47101 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
> 0.00%
48>= 200 nanosecondsBeta-minus DecayNo Data Available
49>= 170 nanosecondsBeta-minus DecayNo Data Available
50> 620 nanosecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available
51> 200 nanosecondsBeta-minus DecayNo Data Available

Citation and linking information

For questions about this page, please contact Steve Gagnon.