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NEET2009PhysicsNuclear PhysicsActual

In radioactive decay process, the negatively charged emitted -particles are

Options

  1. Athe electrons present inside the nucleus
  2. Bthe electrons produced as a result of the decay of neutrons inside the nucleus
  3. Cthe electrons produced as a result of collisions between atoms
  4. Dthe electrons orbiting around the nucleus

Correct answer

B. the electrons produced as a result of the decay of neutrons inside the nucleus

Step-by-step solution

Beta decay can involve the emission of either electrons or positrons. The electrons or positrons emitted in a -decay do not exist inside the nucleus. They are only created at the time of emission, just as photons are created when an atom makes a transition from higher to a lower energy state. In negative -decay a neutron in the nucleus is transformed into a proton, an electron and an antineutrino. Hence, in radioactive decay process, the negatively charged emitted -particles are the electrons produced as a result o

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