alpha particle

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English

Etymology

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Pronunciation

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Noun

alpha particle noun

A positively charged nucleus of a helium-4 atom (consisting of two protons and two neutrons), emitted as a consequence of radioactivity; α-particle

Verb

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Synonyms

α-particle alpha emission alpha radiation alpha emitter alpha decay alpha ray angel particle antihelion antinucleon protonium antiproton antihelium antiprotonic helium charged particle β-particle antiatom

Usage & collocations

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References