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Uranium-235

Uranium-235 (235U or U-235) is an isotope of uranium making up about 0.72% of natural uranium. Unlike the predominant isotope uranium-238, it is fissile, i.e., it can sustain a nuclear chain reaction. It is the only fissile isotope that exists in nature as a primordial nuclide and was discovered in 1935 by Arthur Jeffrey Dempster.

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Key facts & relationships

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Alpha
4.679
Decay mode
Decay energy (MeV)
Decay products
231Th
Excess energy
40914.062±1.970 keV
Half-life (t1/2)
7.04×108 years
Isotope mass
235.043928 Da

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Overview

Fission properties

Decay

Astrophysical dating

Advanced semantic analysis

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Map overview Semantic statistics

Uranium-235

Nodes82
Edges81
Triples39
Avg. degree1.98
Density0.02439
Components1

How this topic connects Entity context

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Uranium-235

Top relations

related to Fission properties · 11
Uranium-235 → Another, Heavy, HEU, Highly, MeV, That, The, TJ/kg, TJ/mol, Uranium, When
related to Astrophysical dating · 10
Uranium-235 → At, B2FH, From, Knowledge, Milky Way, Sun's, The, They, This, Thus
related to Decay · 3
Uranium-235 → Beginning, Or, The
Alpha · 1
Uranium-235 → 4.679
Decay mode · 1
Uranium-235 → Decay energy (MeV)
Decay products · 1
Uranium-235 → 231Th
Excess energy · 1
Uranium-235 → 40914.062±1.970 keV
Half-life (t1/2) · 1
Uranium-235 → 7.04×108 years
Isotope mass · 1
Uranium-235 → 235.043928 Da
Names · 1
Uranium-235 → uranium-235

Important terminology Word statistics

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Important terminology

uranium nuclear fission natural neutrons weapons reaction 235u enriched years chain isotope mass critical energy neutron decay reactor fissile highly

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Uranium-235Alpha4.6791.00infobox
Uranium-235Decay modeDecay energy (MeV)1.00infobox
Uranium-235Decay products231Th1.00infobox
Uranium-235Excess energy40914.062±1.970 keV1.00infobox
Uranium-235Half-life (t1/2)7.04×108 years1.00infobox
Uranium-235Isotope mass235.043928 Da1.00infobox
Uranium-235Namesuranium-2351.00infobox
Uranium-235Natural abundance0.72%1.00infobox
Uranium-235Neutrons (N)1431.00infobox
Uranium-235Nuclear binding energy1783870.285±1.996 keV1.00infobox
Uranium-235Parent isotopes235Pa (β−) 235Np (β+) 239Pu (α)1.00infobox
Uranium-235Protons .mw-parser-output .nobold{font-weight:normal}(Z)921.00infobox
Uranium-235Spin7/2−1.00infobox
Uranium-235Symbol235U1.00infobox
Uranium-235is amain progenitor of the actinium series0.90text

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