Meaning Of The Word Alpha particle

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Alpha particle Meaning

Alpha particle Definition
Alpha particle Definition

What's The Definition Of Alpha particle?

alpha particle in American English
a positively charged particle given off by certain radioactive substances: it consists of two protons and two neutrons (a helium nucleus), and is converted into an atom of helium by the acquisition of two electrons
noun: a positively charged particle consisting of two protons and two neutrons, emitted in radioactive decay or nuclear fission; the nucleus of a helium atom

alpha particle in British English
noun: a helium-4 nucleus, containing two neutrons and two protons, emitted during some radioactive transformations

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