It's Elemental

Krypton

Previous Element

(Krypton)

The Periodic Table of Elements

Next Element

(Strontium)

Strontium

Isotopes of the Element Rubidium

[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
8572.17%STABLE
8727.83%4.81×10+10 years

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
71No Data AvailableProton Emission (suspected)No Data Available
721.2 microsecondsProton Emission (suspected)No Data Available
7330 nanosecondsElectron Capture (suspected)No Data Available
73m< 30 nanosecondsProton Emission> 0.00%
7464.9 millisecondsElectron Capture100.00%
7519.0 secondsElectron Capture100.00%
7636.5 secondsElectron Capture100.00%
Electron Capture with
delayed Alpha Decay
3.8×10-7 %
773.77 minutesElectron Capture100.00%
7817.66 minutesElectron Capture100.00%
78m5.74 minutesIsomeric Transition9.00%
Electron Capture91.00%
7922.9 minutesElectron Capture100.00%
8033.4 secondsElectron Capture100.00%
814.572 hoursElectron Capture100.00%
81m30.5 minutesIsomeric Transition97.60%
Electron Capture2.40%
821.2575 minutesElectron Capture100.00%
82m6.472 hoursElectron Capture100.00%
Isomeric Transition< 0.33%
8386.2 daysElectron Capture100.00%
8432.82 daysBeta-minus Decay3.90%
Electron Capture96.10%
84m20.26 minutesIsomeric Transition100.00%
85STABLE--
8618.642 daysBeta-minus Decay99.99%
Electron Capture5.2×10-3 %
86m1.017 minutesIsomeric Transition100.00%
Beta-minus Decay< 0.30%
874.81×10+10 yearsBeta-minus Decay100.00%
8817.773 minutesBeta-minus Decay100.00%
8915.15 minutesBeta-minus Decay100.00%
90158 secondsBeta-minus Decay100.00%
90m258 secondsBeta-minus Decay97.40%
Isomeric Transition2.60%
9158.4 secondsBeta-minus Decay100.00%
924.492 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
0.01%
935.84 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
1.39%
942.702 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
10.50%
95377.7 millisecondsBeta-minus Decay with
delayed Neutron Emission
8.70%
Beta-minus Decay100.00%
96203 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
13.30%
97169.1 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
25.50%
98102 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
13.80%
Beta-minus Decay with delayed
Double Neutron Emission
0.05%
98m96 millisecondsBeta-minus Decay100.00%
9954 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
15.80%
10051 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
6.00%
Beta-minus Decay with delayed
Double Neutron Emission
0.16%
10132 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
28.00%
10237 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
18.00%
103> 633 nanosecondsBeta-minus DecayNo Data Available
Beta-minus Decay with
delayed Neutron Emission
No Data Available