It's Elemental

Selenium

Previous Element

(Selenium)

The Periodic Table of Elements

Next Element

(Krypton)

Krypton

Isotopes of the Element Bromine

[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
7950.69%STABLE
8149.31%STABLE

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
67No Data AvailableProton Emission (suspected)No Data Available
681.2 microsecondsProton Emission (suspected)No Data Available
6924 nanosecondsProton Emission (suspected)No Data Available
7079.1 millisecondsElectron Capture100.00%
70m2.2 secondsElectron Capture100.00%
7121.4 secondsElectron Capture100.00%
7278.6 secondsElectron Capture100.00%
72m10.6 secondsIsomeric Transition100.00%
Electron CaptureNo Data Available
733.4 minutesElectron Capture100.00%
7425.4 minutesElectron Capture100.00%
74m46 minutesElectron Capture100.00%
7596.7 minutesElectron Capture100.00%
7616.2 hoursElectron Capture100.00%
76m1.31 secondsIsomeric Transition> 99.40%
Electron Capture< 0.60%
7757.036 hoursElectron Capture100.00%
77m4.28 minutesIsomeric Transition100.00%
786.45 minutesElectron Capture>= 99.99%
Beta-minus Decay<= 0.01%
79STABLE--
79m5.1 secondsIsomeric Transition100.00%
8017.68 minutesBeta-minus Decay91.70%
Electron Capture8.30%
80m4.4205 hoursIsomeric Transition100.00%
81STABLE--
8235.282 hoursBeta-minus Decay100.00%
82m6.13 minutesIsomeric Transition97.60%
Beta-minus Decay2.40%
832.40 hoursBeta-minus Decay100.00%
8431.76 minutesBeta-minus Decay100.00%
84m6.0 minutesBeta-minus Decay100.00%
852.90 minutesBeta-minus Decay100.00%
8655.1 secondsBeta-minus Decay100.00%
8755.65 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
2.60%
8816.29 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
6.58%
894.40 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
13.80%
901.91 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
25.20%
910.541 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
20.00%
920.343 secondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
33.10%
93102 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
68.00%
9470 millisecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
68.00%
95>= 150 nanosecondsBeta-minus Decay100.00%
Beta-minus Decay with
delayed Neutron Emission
34.00%
96>= 150 nanosecondsBeta-minus Decay with
delayed Neutron Emission
27.60%
Beta-minus Decay100.00%
97> 300 nanosecondsBeta-minus DecayNo Data Available
98> 634 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