MHT CET · Physics · Nuclear Physics
In radioactive decay process, the negatively charged emitted \(\beta\) -particles are
- A the electrons present inside the nucleus
- B the electrons produced as a result of the decay of neutrons inside the nucleus
- C the electrons produced as a result of collisions between atoms
- D the electrons orbiting around the nucleus
Answer & Solution
Correct Answer
(B) the electrons produced as a result of the decay of neutrons inside the nucleus
Step-by-step Solution
Detailed explanation
Beta decay can involve the emission of either electrons or positrons. The electrons or positrons emitted in a \(\beta\) -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 \(\beta\) -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 \beta-particles are the electrons produced as a result of the decay of neutrons present inside the nucleus.
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