ALPHAPARTICLE

Alpha particle

Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium nucleus. 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 symbol for the alpha particle is α or α2+. Because they are identical to helium nuclei, they are also sometimes written as or indicating a Helium ion with a +2 charge . If the ion gains electrons from its environment, the alpha particle can be written as a normal Helium atom .

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alpha particle

Noun

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


The above text is a snippet from Wiktionary: alpha particle
and as such is available under the Creative Commons Attribution/Share-Alike License.

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