Alpha rays - alpha particle (helium nucleus); gamma rays - photons

Q.  Alpha rays consists of
- Published on 05 May 16

a. Helium Nucleus
b. Photons
c. Protons
d. Positrons

ANSWER: Helium Nucleus
 
  • Alpha decay or α-decay is a type of radioactive decay in which an atomic nucleus emits an alpha particle (helium nucleus) and thereby transforms or 'decays' into an atom with a mass number that is reduced by four and an atomic number that is reduced by two.
  • An alpha particle is identical to the nucleus of a helium-4 atom, which consists of two protons and two neutrons.
  • Gamma rays consist of Photons.

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