Isotopes of the Element Chlorine
[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 Chlorine with a Known Natural Abundance

All Known Isotopes of the Element Chlorine

Mass Number	Half-life	Decay Mode	Branching Percentage

28	No Data Available	Proton Emission	No Data Available

29	< 20 nanoseconds	Proton Emission	No Data Available

30	< 30 nanoseconds	Proton Emission	No Data Available

31	150 milliseconds	Electron Capture	100.00

		Electron Capture with delayed Proton Emission	0.70

32	298 milliseconds	Electron Capture	100.00

		Electron Capture with delayed Alpha Decay	0.05

		Electron Capture with delayed Proton Emission	0.03

33	2.511 seconds	Electron Capture	100.00

34	1.5264 seconds	Electron Capture	100.00

34_m	32.00 minutes	Electron Capture	55.40

		Isomeric Transition	44.60

35	Stable	-	-

36	3.01×10⁺⁵ years	Beta-minus Decay	98.10

		Electron Capture	1.90

37	Stable	-	-

38	37.24 minutes	Beta-minus Decay	100.00

38_m	715 milliseconds	Isomeric Transition	100.00

39	55.6 minutes	Beta-minus Decay	100.00

40	1.35 minutes	Beta-minus Decay	100.00

41	38.4 seconds	Beta-minus Decay	100.00

42	6.8 seconds	Beta-minus Decay	100.00

43	3.07 seconds	Beta-minus Decay	100.00

44	0.56 seconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	< 8.00

45	400 milliseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	24.00

46	223 milliseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	60.00

47	> 200 nanoseconds	Beta-minus Decay	100.00

		Beta-minus Decay with delayed Neutron Emission	<= 3.00

48	> 200 nanoseconds	Beta-minus Decay	No Data Available

49	≥ 170 nanoseconds	Beta-minus Decay	No Data Available

51	> 200 nanoseconds	Beta-minus Decay	No Data Available

This page is maintained by Steve Gagnon.

Isotopes of the Element Chlorine[Click for Main Data]