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Isotopes of the Element Neon

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Most of the isotope data on this site has been obtained from the National Nuclear Data Center.

Naturally Occurring Isotopes

Mass NumberNatural AbundanceHalf-life
2090.48%STABLE
210.27%STABLE
229.25%STABLE

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
169×10-21 secondsDouble Proton Emission100.00%
17109.2 millisecondsElectron Capture with
delayed Alpha Decay		No Data Available
Electron Capture100.00%
Electron Capture with
delayed Proton Emission		100.00%
181.6670 secondsElectron Capture100.00%
1917.22 secondsElectron Capture100.00%
20STABLE--
21STABLE--
22STABLE--
2337.24 secondsBeta-minus Decay100.00%
243.38 minutesBeta-minus Decay100.00%
25602 millisecondsBeta-minus Decay100.00%
26197 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission		0.13%
2731.5 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission		2.00%
2818.9 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission		12.0%
Beta-minus Decay3.60%
2914.8 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission		28.00%
Beta-minus Decay with delayed
Double Neutron Emission		4.00%
307.3 millisecondsBeta-minus Decay8.90%
Beta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission		13.00%
313.4 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission		No Data Available
323.5 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission		No Data Available
33< 180 nanosecondsNeutron EmissionNo Data Available
34> 60 nanosecondsBeta-minus Decay with
delayed Neutron Emission		No Data Available
Beta-minus DecayNo Data Available