alpha particle definition

  • noun:
    • A positively charged particle, indistinguishable from a helium atom nucleus and comprising two protons as well as 2 neutrons.
    • A positively recharged nucleus of a helium-4 atom (consisting of two protons as well as 2 neutrons), emitted as a consequence of radioactivity; α-particle
    • a positively recharged particle that is the nucleus of helium atom; emitted from natural or radioactive isotopes
    • A positively charged particle, indistinguishable from a helium atom nucleus and composed of two protons and two neutrons.
    • A positively recharged nucleus of a helium-4 atom (consisting of two protons as well as 2 neutrons), emitted as a consequence of radioactivity; α-particle
    • a positively charged particle this is the nucleus of the helium atom; emitted from natural or radioactive isotopes
  • others:
    • a particle emitted at high velocity from certain radioactive substances. Its identical to the helium nucleus, composed of two protons and two neutrons. Rays of these particles are called alpha rays.
    • a particle emitted at high velocity from certain radioactive substances. It's identical to the helium nucleus, comprising two protons and two neutrons. Rays of these particles are called alpha rays.

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    • A positively charged particle, indistinguishable from a helium…
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