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Neutron

A neutron is a subatomic particle, symbol n or n0, that has no electric charge, and a mass slightly greater than that of a proton. The neutron was discovered by James Chadwick in 1932, leading to the discovery of nuclear fission in 1938, the first self-sustaining nuclear reactor (Chicago Pile-1, 1942), and the first nuclear weapon (Trinity, 1945).

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Antiparticle
Antineutron
Classification
Baryon
Composition
1 up quark, 2 down quarks
Condensed
I(JP) = ⁠1/2⁠(⁠1/2⁠+)
Discovered
James Chadwick (1932)
Electric charge
0 e (−2±8)×10−22 e (experimental limits)

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Overview

Discovery

Occurrence

Composition

Properties

Detection

Sources and production

Applications

Medical therapies

Health risks

Neutron temperature

Processes involving neutrons

Advanced semantic analysis

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Map overview Semantic statistics

Neutron

Nodes249
Edges248
Triples242
Avg. degree1.99
Density0.008032
Components1

How this topic connects Entity context

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Neutron

Top relations

related to Further reading · 28
Neutron → Abraham Pais, Alsos Digital Library, An Exploration, Annotated, Chicago Press, Co, Dover Publications, Herwig Schopper, Inward Bound, ISBN, James Byrne, Matter, Mineola, Neutrons, New York, North-Holland Pub, Nuclear Issues, Nuclei, Oxford, Oxford University Press
related to Spin · 17
Neutron → Although, As, Bernstein, Burgy, Dirac, For, Gerlach, Hughes, In, Pauli, Planck, Sherwood, Stephenson, Stern, The, They, This
related to Electric dipole moment · 14
Neutron → But, Cryogenic, Currently, EDM, From, Institut Laue, Langevin, Langevinn2EDM, New, Paul Scherrer InstitutenEDM, Spallation Neutron SourcenEDM, Standard Model, The Standard Model, UCN
related to Health risks · 13
Neutron → After, Avoid, But, CANDU-type, Deuterium, Exposure, For, However, Hydrogen-rich, Instead, The, This, Usually
related to Sources and production · 12
Neutron → Earth, Earth's, Free, In, MeV, Natural, Recent, The, Their, There, These, Within
related to Magnetic moment · 11
Neutron → Alvarez, Berkeley, Bloch, California, Dirac, Even, Felix Bloch, In, Luis Alvarez, Simplistically, The
related to Discovery · 10
Neutron → About, American, Electrons, Ernest Rutherford, Greek, Harkins, In, Latin, Rutherford, The
related to Neutron beams and modification of beams after production · 10
Neutron → But, Charged, Cold, Faraday, For, Free, Neutrons, The, Thermal, These
related to Antineutron · 8
Neutron → Bruce Cork, CL, It, Neutrons, One, The, Ultracold, While
related to Free neutron · 8
Neutron → Intrinsic, MeV, Moreover, Neutrons, Once, The, Thus, With

Important terminology Word statistics

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Important terminology

neutrons nuclear radiation decay proton magnetic energy protons particle atomic nucleus fission quarks nuclei free mass moment spin electric capture

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
NeutronAntiparticleAntineutron1.00infobox
NeutronClassificationBaryon1.00infobox
NeutronComposition1 up quark, 2 down quarks1.00infobox
NeutronCondensedI(JP) = ⁠1/2⁠(⁠1/2⁠+)1.00infobox
NeutronDiscoveredJames Chadwick (1932)1.00infobox
NeutronElectric charge0 e (−2±8)×10−22 e (experimental limits)1.00infobox
NeutronElectric dipole moment< 1.8×10−26 e⋅cm (experimental upper limit)1.00infobox
NeutronElectric polarizability1.16(15)×10−3 fm31.00infobox
NeutronFamilyHadron1.00infobox
NeutronInteractionsGravity, weak, strong, electromagnetic1.00infobox
NeutronIsospin−⁠1/2⁠1.00infobox
NeutronMagnetic moment−0.96623650(23)×10−26 J·T−1 −1.04187563(25)×10−3 μB −1.91304273(45) μN1.00infobox
NeutronMagnetic polarizability3.7(20)×10−4 fm31.00infobox
NeutronMass1.67492750056(85)×10−27 kg‍ 939.56542194(48) MeV/c2‍ 1.00866491606(40) Da‍1.00infobox
NeutronMean lifetime878.4(5) s (free)1.00infobox
NeutronParity+11.00infobox
NeutronSpin.mw-parser-output .sfrac{white-space:nowrap}.mw-parser-output .sfrac.tion,.mw-parser-output .sfrac .tion{display:inline-block;vertical-align:-0.5em;font-size:85%;text-align:cent…1.00infobox
NeutronStatisticsFermionic1.00infobox
NeutronSymboln, n0 , N01.00infobox
NeutronTheorizedErnest Rutherford (1920)1.00infobox
Neutronis asubatomic particle0.90text
Neutronis acomposite0.90text
Neutronis aspin0.90text
Neutronis aneutral particle0.90text
Neutronis aindication of its quark substructure and internal charge distribution0.90text

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