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Isotopes of the Element Manganese

[Click for Main Data]         Proton Emission     Neutron Emission     Electron Emission     Positron Emission

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

Naturally Occurring Isotopes

Mass NumberNatural AbundanceHalf-life
55100%STABLE

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
44< 105 nanosecondsElectron CaptureNo Data Available
Proton EmissionNo Data Available
45No Data AvailableNo Data AvailableNo Data Available
4636.2 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
57.00%
4788.0 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
< 1.70%
48158.1 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
0.28%
Electron Capture with
delayed Alpha Decay
< 6.0×10-4 %
49382 millisecondsElectron Capture100.00%
50283.19 millisecondsElectron Capture100.00%
50m1.75 minutesElectron Capture100.00%
5146.2 minutesElectron Capture100.00%
525.591 daysElectron Capture100.00%
52m21.1 minutesElectron Capture98.25%
Isomeric Transition1.75%
533.74×10+6 yearsElectron Capture100.00%
54312.12 daysElectron Capture100.00%
Beta-minus Decay< 2.9×10-4 %
55STABLE--
562.5789 hoursBeta-minus Decay100.00%
5785.4 secondsBeta-minus Decay100.00%
583.0 secondsBeta-minus Decay100.00%
58m65.4 secondsBeta-minus Decay~ 90.00%
Isomeric Transition~ 10.00%
594.59 secondsBeta-minus Decay100.00%
600.28 secondsBeta-minus Decay100.00%
60m1.77 secondsBeta-minus Decay88.50%
Isomeric Transition11.50%
610.67 secondsBeta-minus Decay100.00%
62671 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
No Data Available
62m92 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
No Data Available
630.275 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
No Data Available
6490 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
33.00%
64m0.50 millisecondsIsomeric Transition100.00%
6584 millisecondsBeta-minus Decay100.00%
6665 millisecondsBeta-minus Decay100.00%
6751 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
> 10.0%
6828 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
No Data Available
6918 millisecondsBeta-minus Decay100.00%
70> 360 nanosecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available
71> 637 nanoseconds   Beta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available
Beta-minus Decay with delayed  
Double Neutron Emission
No Data Available