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Isotopes of the Element Praseodymium

[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
141100%STABLE

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
12110 millisecondsProton Emission100.00%
1220.5 seconds Electron Capture (suspected)No Data Available
1230.8 secondsElectron Capture (suspected)No Data Available
1241.2 secondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
> 0.00%
1253.3 secondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
No Data Available
1263.14 secondsElectron Capture100.00%
Electron Capture with
delayed Proton Emission
No Data Available
1274.2 secondsElectron Capture100.00%
1282.84 secondsElectron Capture100.00%
12930 secondsElectron Capture> 0.00%
13040 secondsElectron Capture100.00%
Electron Capture100.00%
Electron Capture100.00%
1311.51 minutesElectron Capture100.00%
131m5.73 secondsIsomeric Transition96.40%
Electron Capture3.60%
1321.6 minutesElectron Capture100.00%
1336.5 minutesElectron Capture100.00%
133m1.1 secondsIsomeric Transition100.00%
134≈ 11 minutesElectron Capture100.00%
134m17 minutesElectron Capture100.00%
13524 minutesElectron Capture100.00%
13613.1 minutesElectron Capture100.00%
1371.28 hoursElectron Capture100.00%
1381.45 minutesElectron Capture100.00%
138m2.12 hoursElectron Capture100.00%
1394.41 hoursElectron Capture100.00%
1403.39 minutesElectron Capture100.00%
141STABLE--
14219.12 hoursBeta-minus Decay99.98%
Electron Capture0.02%
142m14.6 minutesIsomeric Transition100.00%
14313.57 daysBeta-minus Decay100.00%
14417.28 minutesBeta-minus Decay100.00%
144m7.2 minutesIsomeric Transition99.93%
Beta-minus Decay0.07%
1455.984 hoursBeta-minus Decay100.00%
14624.15 minutesBeta-minus Decay100.00%
14713.4 minutesBeta-minus Decay100.00%
1482.29 minutesBeta-minus Decay100.00%
148m2.01 minutesBeta-minus Decay100.00%
1492.26 minutesBeta-minus Decay100.00%
1506.19 secondsBeta-minus Decay100.00%
15118.90 secondsBeta-minus Decay100.00%
1523.57 secondsBeta-minus Decay100.00%
1534.28 secondsBeta-minus Decay100.00%
1542.3 secondsBeta-minus Decay100.00%
155> 300 nanosecondsBeta-minus Decay (suspected)No Data Available
156> 300 nanoseconds   Beta-minus Decay (suspected)No Data Available
157No Data AvailableBeta-minus Decay (suspected)No Data Available
158No Data AvailableBeta-minus Decay (suspected)No Data Available
159No Data AvailableBeta-minus Decay (suspected)   No Data Available