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Alpha particle

Alpha particles, also called alpha rays or alpha radiation, consist of two protons and two neutrons bound together into a particle identical to the nucleus of a helium-4 atom. They are generally produced in the process of alpha decay but may also be produced in other ways. Alpha particles are named after the first letter in the Greek alphabet, α. The…

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Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Charge radius
1.6785(21)×10−15 m‍
Composition
2 protons, 2 neutrons
Electric charge
+2 e
Mass
6.6446573450(21)×10−27 kg‍ 4.001506179129(62) Da‍ 3.7273794118(11) GeV/c2‍
Spin
0 ħ‍
Statistics
Bosonic

Topics to explore

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Overview

Name

Sources

Energy and absorption

Biological effects

History of discovery and use

Anti-alpha particle

Applications

Alpha radiation and DRAM errors

Advanced semantic analysis

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Map overview Semantic statistics

Alpha particle

Nodes117
Edges116
Triples71
Avg. degree1.98
Density0.017094
Components1

How this topic connects Entity context

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Alpha particle

Top relations

has effect · 11
Alpha particle → Alexander, Because, Due, European, FSB, It, Litvinenko, Russian, The, Thorotrast, X-ray
related to Devices · 9
Alpha particle → Alpha, However, Many, Plutonium-238, Smoke, Some, Static, The, US EPA
related to Name · 9
Alpha particle → After, Alpha, Ernest Rutherford, Hans Geiger, He2, Helium, Rutherford, The, This
related to Alpha decay · 5
Alpha particle → Alpha, Examples, The, Unlike, When
related to Ternary fission · 5
Alpha particle → Especially, In, MeV, Such, Ternary
related to Alpha radiation and DRAM errors · 4
Alpha particle → DRAM, In, Intel's DRAM, The
related to Energy and absorption · 4
Alpha particle → Geiger, MeV, Nuttall, The
related to External links · 4
Alpha particle → Alpha, Media, Wikimedia Commons, Wiktionary-logo-en-v2
is a · 2
Alpha particle → agglomeration of two protons and two neutrons, hydrogen molecule
related to Accelerators · 2
Alpha particle → Convention, Energetic

Important terminology Word statistics

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Important terminology

alpha particles particle radiation decay helium energy atom uranium rutherford also nuclei radioactive nuclear two produced charge nucleus rays electrons

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Alpha particleCharge radius1.6785(21)×10−15 m‍1.00infobox
Alpha particleComposition2 protons, 2 neutrons1.00infobox
Alpha particleElectric charge+2 e1.00infobox
Alpha particleMass6.6446573450(21)×10−27 kg‍ 4.001506179129(62) Da‍ 3.7273794118(11) GeV/c2‍1.00infobox
Alpha particleSpin0 ħ‍1.00infobox
Alpha particleStatisticsBosonic1.00infobox
Alpha particleSymbolα, α2+, He2+1.00infobox
Alpha particleis ahydrogen molecule0.90text
Alpha particleis aagglomeration of two protons and two neutrons0.90text
uraniuminstance ofand that of radium to radon.Alpha particles are commonly emitted by all of the larger radioactive nuclei0.80text
thoriuminstance ofand that of radium to radon.Alpha particles are commonly emitted by all of the larger radioactive nuclei0.80text
actiniuminstance ofand that of radium to radon.Alpha particles are commonly emitted by all of the larger radioactive nuclei0.80text

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    Min side: 3
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