JIPMER2009PhysicsNuclear Physics
In radioactive decay process, the negatively charged emitted -particles are
Options
- Athe electrons present inside the nucleus
- Bthe electrons produced as a result of the decay of neutrons inside the nucleus
- Cthe electrons produced as a result of collisions between atoms
- 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