It's Elemental

Chromium

Previous Element

(Chromium)

The Periodic Table of Elements

Next Element

(Iron)

Iron

Isotopes of the Element Manganese

[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
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 nanosecondsBeta-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