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Potassium

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The Periodic Table of Elements

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Scandium

Isotopes of the Element Calcium

[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.

Naturally Occurring Isotopes

Mass NumberNatural AbundanceHalf-life
4096.94%> 3.0×10+21 years
420.647%STABLE
430.135%STABLE
442.09%STABLE
460.004%> 0.28×10+16 years
480.187%> 5.8×1022 years

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
34< 35 nanosecondsProton EmissionNo Data Available
3525.7 millisecondsElectron Capture with
delayed Proton Emission
95.90%
Electron Capture with
delayed Double Proton Emission
4.10%
Electron Capture100.00%
36102 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
54.30%
37181.1 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
82.10%
38440 millisecondsElectron Capture100.00%
39859.6 millisecondsElectron Capture100.00%
40> 3.0×10+21 yearsDouble Electron CaptureNo Data Available
411.02×10+5 yearsElectron Capture100.00%
42STABLE--
43STABLE--
44STABLE--
45162.61 daysBeta-minus Decay100.00%
46> 0.28×10+16 yearsDouble Beta-minus DecayNo Data Available
474.536 daysBeta-minus Decay100.00%
48> 5.8×1022 yearsDouble Beta-minus Decay75.00%
498.718 minutesBeta-minus Decay100.00%
5013.9 secondsBeta-minus Decay100.00%
5110.0 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
No Data Available
524.6 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
<= 2.00%
5390 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
> 30.00%
5486 millisecondsBeta-minus Decay100.00%
5522 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
No Data Available
5611 millisecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission (suspected)
No Data Available
57> 620 nanosecondsBeta-minus Decay with delayed
Double Neutron Emission
No Data Available
Beta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available
58> 620 nanosecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available