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It's Elemental
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[Return to Sodium's Data Page]

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 Sodium with a Known Natural Abundance

Mass NumberNatural AbundanceHalf-life
23100%Stable

All Known Isotopes of the Element Sodium

Mass NumberHalf-lifeDecay ModeBranching Percentage
18No Data AvailableProton EmissionNo Data Available
Electron CaptureNo Data Available
19< 40 nanosecondsProton EmissionNo Data Available
20447.9 millisecondsElectron Capture100.00
Electron Capture with
delayed Alpha Decay		20.05
2122.49 secondsElectron Capture100.00
222.6019 yearsElectron Capture100.00
23Stable--
2414.9590 hoursBeta-minus Decay100.00
24m20.20 millisecondsIsomeric Transition99.95
Beta-minus Decay0.05
2559.1 secondsBeta-minus Decay100.00
261.077 secondsBeta-minus Decay100.00
27301 millisecondsBeta-minus Decay100.00
Beta-minus Decay with
delayed Neutron Emission		0.13
2830.5 millisecondsBeta-minus Decay100.00
Beta-minus Decay with
delayed Neutron Emission		0.58
2944.9 millisecondsBeta-minus Decay100.00
Beta-minus Decay with
delayed Neutron Emission		21.50
3048 millisecondsBeta-minus Decay100.00
Beta-minus Decay with
delayed Neutron Emission		30.00
Beta-minus Decay1.17
Beta-minus Decay with
delayed Alpha Decay		5.5E-5
3117.0 millisecondsBeta-minus Decay100.00
Beta-minus Decay with
delayed Neutron Emission		37.00
Beta-minus Decay0.90
3213.2 millisecondsBeta-minus Decay100.00
Beta-minus Decay with
delayed Neutron Emission		24.00
Beta-minus Decay8.00
338.4 millisecondsBeta-minus Decay100.00
Beta-minus Decay with
delayed Neutron Emission		52.00
Beta-minus Decay12.00
345.5 millisecondsBeta-minus Decay100.00
Beta-minus Decay with
delayed Neutron Emission		<= 100.00
Beta-minus DecayNo Data Available
351.5 millisecondsBeta-minus Decay100.00
Beta-minus Decay with
delayed Neutron Emission		No Data Available

This page is maintained by Steve Gagnon.

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