Isotopes of the Element Carbon
[Click for Main Data]

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 of the Element Carbon with a Known Natural Abundance

All Known Isotopes of the Element Carbon

Mass Number	Half-life	Decay Mode	Branching Percentage

8	1.98739×10^-21 seconds	Proton Emission	No Data Available

		Alpha Decay	No Data Available

9	126.5 milliseconds	Electron Capture	100.00

		Electron Capture with delayed Proton Emission	23.00

		Electron Capture with delayed Alpha Decay	17.00

10	19.26 seconds	Electron Capture	100.00

11	20.39 minutes	Electron Capture	100.00

12	Stable	-	-

13	Stable	-	-

14	5700 years	Beta-minus Decay	100.00

15	2.449 seconds	Beta-minus Decay	100.00

16	0.747 seconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	99.00

17	193 milliseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	32.00

18	92 milliseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	31.50

19	49 milliseconds	Beta-minus Decay with delayed Neutron Emission	61.00

		Beta-minus Decay	No Data Available

20	14 milliseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	72.00

21	< 30 nanoseconds	Neutron Emission	No Data Available

22	9 milliseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	> 0.00

		Beta-minus Decay with delayed Double Neutron Emission	> 0.00

This page is maintained by Steve Gagnon.

Isotopes of the Element Carbon[Click for Main Data]