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Isotopes of the Element Chromium

[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
504.345%> 1.3×10+18 years
5283.789%STABLE
539.501%STABLE
542.365%STABLE

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
4213.3 millisecondsElectron Capture with
delayed Proton Emission
94.40%
Electron Capture100.00%
4320.6 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
81.00%
Electron Capture with
delayed Double Proton Emission  
7.10%
Electron Capture with
delayed Triple Proton Emission
0.08%
4442.8 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
14.00%
4560.9 millisecondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
34.40%
460.26 secondsElectron Capture100.00%
47500 millisecondsElectron Capture100.00%
4821.56 hoursElectron Capture100.00%
4942.3 minutesElectron Capture100.00%
50> 1.3×10+18 yearsDouble Electron CaptureNo Data Available
5127.7025 daysElectron Capture100.00%
52STABLE--
53STABLE--
54STABLE--
553.497 minutesBeta-minus Decay100.00%
565.94 minutesBeta-minus Decay100.00%
5721.1 secondsBeta-minus Decay100.00%
587.0 secondsBeta-minus Decay100.00%
591.05 secondsBeta-minus Decay100.00%
600.49 secondsBeta-minus Decay100.00%
61243 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
No Data Available
62206 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
No Data Available
63129 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
No Data Available
6442 millisecondsBeta-minus Decay100.00%
6528 millisecondsBeta-minus Decay100.00%
6623 millisecondsBeta-minus Decay100.00%
67No Data AvailableBeta-minus Decay (suspected)No Data Available
68> 360 nanoseconds   Beta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available