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It's Elemental

Isotopes of the Element Carbon

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Carbon

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
1298.93%STABLE
131.07%STABLE

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
81.981×10-21 secondsProton Emission100.00%
Alpha DecayNo Data Available
9126.5 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
61.60%
Electron Capture with
delayed Alpha Decay
38.40%
1019.308 secondsElectron Capture100.00%
1120.334 minutesElectron Capture100.00%
12STABLE--
13STABLE--
145700 yearsBeta-minus Decay100.00%
152.449 secondsBeta-minus Decay100.00%
160.747 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
99.00%
17193 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
32.00%
1892 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
31.50%
1949 millisecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
61.00%
2014 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
72.00%
2130 nanosecondsNeutron Emission (suspected)No Data Available
226.1 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
61.00%
Beta-minus Decay with delayed
Double Neutron Emission
< 37.00%
23No Data AvailableNo Data AvailableNo Data Available

Citation and linking information

For questions about this page, please contact Carol McKisson.