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ɑ-particle consists of

  By GK Planet Team      
Q. ɑ-particle consists of:
  1. 2 protons only
  2. 2 protons and 2 neutrons only
  3. 2 electrons, 2 protons, and 2 neutrons
  4. 2 electrons and 4 protons only
Answer: 2 protons and 2 neutrons only

An alpha particle is a fast-moving packet containing two protons and two neutrons (a helium nucleus). Alpha particles carry a charge of +2 and strongly interact with matter.
Alpha particles, also called alpha ray or alpha radiation, consist of two protons and two neutrons bound together into a particle identical to a helium-4 nucleus. They are generally produced in the process of alpha decay, but may also be produced in other ways.

What are alpha particles made of?

Alpha "rays" are actually high-speed particles. An alpha particle is made up of two protons and two neutrons, all held together by the same strong nuclear force that binds the nucleus of an atom.
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