Vissza Astrojan csillagászati képgyűjteményhez

Isotopes of the Element Uranium

[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
2340.0054%2.455×10+5 years
2350.7204%7.04×10+8 years
23899.2742%4.468×109 years

Known Isotopes

Mass NumberHalf-lifeDecay ModeBranching Percentage
21716 millisecondsAlpha Decay<= 100.00%
2180.51 millisecondsAlpha Decay100.00%
218m0.56 millisecondsAlpha Decay100.00%
21942 microsecondsAlpha Decay100.00%
220No Data AvailableAlpha Decay (suspected)No Data Available
Electron Capture (suspected)No Data Available
221700 nanosecondsNo Data AvailableNo Data Available
2221.0 microsecondsAlpha Decay100.00%
22318 microsecondsAlpha Decay100.00%
Electron Capture0.20%
2240.9 millisecondsAlpha Decay100.00%
22595 millisecondsAlpha Decay100.00%
2260.35 secondsAlpha Decay100.00%
2271.1 minutesAlpha Decay100.00%
2289.1 minutesAlpha Decay> 95.00%
Electron Capture< 5.00%
22958 minutesElectron Capture~ 80.00%
Alpha Decay~ 20.00%
23020.8 daysAlpha Decay100.00%
Spontaneous Fission< 1×10-10 %
Emission of a neon-22 nucleus5×10-12 %
2314.2 daysElectron Capture100.00%
Alpha Decay~ 4.0×10-3 %
23268.9 yearsAlpha Decay100.00%
Spontaneous Fission3×10-12 %
2331.592×10+5 yearsAlpha Decay100.00%
Emission of a neon-24 nucleus9×10-10 %
Spontaneous Fission< 6×10-11 %
Emission of a magnesium-28 nucleus< 1×10-13 %
2342.455×10+5 yearsEmission of a magnesium nucleus1×10-11 %
Emission of a neon nucleus9×10-12 %
Alpha Decay100.00%
Spontaneous Fission1.6×10-9 %
2357.04×10+8 yearsAlpha Decay100.00%
Spontaneous Fission7.0×10-9 %
Emission of a magnesium-28 nucleus   8×10-10 %
Emission of a neon nucleus~ 8×10-10 %
235m≈ 26 minutesIsomeric Transition100.00%
2362.342×107 yearsAlpha Decay100.00%
Spontaneous Fission9.4×10-8 %
2376.75 daysBeta-minus Decay100.00%
2384.468×109 yearsSpontaneous Fission5.5×10-5 %
Alpha Decay100.00%
23923.45 minutesBeta-minus Decay100.00%
24014.1 hoursBeta-minus Decay100.00%
241No Data AvailableBeta-minus Decay (suspected)No Data Available
24216.8 minutesBeta-minus Decay100.00%
243No Data Available   No Data AvailableNo Data Available