uranium-235
E626843
Uranium-235 is a fissile isotope of uranium that readily undergoes nuclear fission, making it crucial for both nuclear power generation and atomic weapons.
Statements (49)
| Predicate | Object |
|---|---|
| instanceOf |
actinide isotope
ⓘ
fissile material ⓘ radioisotope ⓘ uranium isotope ⓘ |
| atomicNumber | 92 ⓘ |
| averageEnergyReleasedPerFission | about 200 MeV ⓘ |
| averageNeutronsPerFission | about 2.4 ⓘ |
| belongsToSeries | uranium-238 decay series ⓘ |
| chemicalFormInFuel |
uranium dioxide
ⓘ
uranium hexafluoride ⓘ |
| criticalFor |
chain reactions in fast reactors
ⓘ
chain reactions in thermal reactors ⓘ |
| decaysTo | thorium-231 ⓘ |
| discoveredAsIsotopeBy | Arthur Jeffrey Dempster NERFINISHED ⓘ |
| enrichmentMethodsInclude |
gas centrifuge
ⓘ
gaseous diffusion ⓘ laser isotope separation ⓘ |
| enrichmentRequiredForPowerReactors | typically 3–5 percent U-235 ⓘ |
| enrichmentRequiredForWeaponsGrade | typically above 90 percent U-235 ⓘ |
| fissileWith |
fast neutrons
ⓘ
thermal neutrons ⓘ |
| fissionProduces |
delayed neutrons
ⓘ
fission fragments ⓘ gamma radiation ⓘ prompt neutrons ⓘ |
| foundIn | natural uranium ore ⓘ |
| halfLife | about 7.04×10^8 years ⓘ |
| massNumber | 235 ⓘ |
| naturalAbundanceInUranium |
about 0.72 percent by atoms
ⓘ
about 0.72 percent by weight ⓘ |
| neutronCaptureProduct | uranium-236 ⓘ |
| oxidationStatesInCompounds |
+4
ⓘ
+6 ⓘ |
| parentElement | uranium ⓘ |
| producedBy | isotope enrichment of natural uranium ⓘ |
| radioactiveDecayMode | alpha decay ⓘ |
| safetyConcern | proliferation risk due to weapons usability ⓘ |
| standardAtomicWeightApprox | 235.0439299 u ⓘ |
| symbol | U-235 ⓘ |
| typicalThermalNeutronCaptureCrossSection | about 98 barns ⓘ |
| typicalThermalNeutronFissionCrossSection | about 585 barns ⓘ |
| usedIn |
boiling water reactors
ⓘ
gun-type fission weapons ⓘ implosion-type fission weapons ⓘ nuclear power reactors ⓘ nuclear weapons ⓘ pressurized water reactors ⓘ research reactors ⓘ |
| yearOfIsotopeIdentification | 1935 ⓘ |
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.