Isotopes of the Element Oxygen

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 Oxygen with a Known Natural Abundance

All Known Isotopes of the Element Oxygen

Mass Number	Half-life	Decay Mode	Branching Percentage

12	1.14275×10^-21 seconds	Proton Emission	No Data Available

13	8.58 milliseconds	Electron Capture	100.00

		Electron Capture with delayed Proton Emission	~ 100.00

14	70.606 seconds	Electron Capture	100.00

15	122.24 seconds	Electron Capture	100.00

16	Stable	-	-

17	Stable	-	-

18	Stable	-	-

19	26.88 seconds	Beta-minus Decay	100.00

20	13.51 seconds	Beta-minus Decay	100.00

21	3.42 seconds	Beta-minus Decay	100.00

22	2.25 seconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	< 22.00

23	82 milliseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	31.00

24	65 milliseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	18.00

25	< 50 nanoseconds	Neutron Emission	No Data Available

26	No Data Available	No Data Available	No Data Available

This page is maintained by Steve Gagnon.