Isotopes of Carbon

Isotopes of Carbon

 

Most of the isotope data on this site has been obtained from the National Nuclear Data Center.
Isotopes of the Element Carbon with a Known Natural Abundance

Mass Number Natural Abundance Half-life
12 98.89% Stable
13 1.11% Stable

 

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
Electron Capture with delayed Proton Emission 23
Electron Capture with delayed Alpha Decay 17
10 19.26 seconds Electron Capture 100
11 20.39 minutes Electron Capture 100
12 Stable
13 Stable
14 5700 years Beta-minus Decay 100
15 2.449 seconds Beta-minus Decay 100
16 0.747 seconds Beta-minus Decay 100
Beta-minus Decay with delayed Neutron Emission 99
17 193 milliseconds Beta-minus Decay 100
Beta-minus Decay with delayed Neutron Emission 32
18 92 milliseconds Beta-minus Decay 100
Beta-minus Decay with delayed Neutron Emission 31.5
19 49 milliseconds Beta-minus Decay with delayed Neutron Emission 61
Beta-minus Decay No Data Available
20 14 milliseconds Beta-minus Decay 100
Beta-minus Decay with delayed Neutron Emission 72
21 < 30 nanoseconds Neutron Emission No Data Available
22 9 milliseconds Beta-minus Decay 100
Beta-minus Decay with delayed Neutron Emission > 0.00
Beta-minus Decay with delayed Double Neutron Emission > 0.00

 

Resources:

http://education.jlab.org/itselemental/ele006.html
http://education.jlab.org/itselemental/iso006.html