In radioactive decay process, the negatively changed emitted `beta-`particle are

Options

A. the electrons present inside the nucleus
B. the eleectrons produced as a result of the decay of neutrons inside the nucleus
C. the electrons produced as result of collisions between atoms
D. the electrons orbiting around the nucleus

Answer

B

Explanation

Beta deacy 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 eenrgy 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 nagtively charged emitted `beta`particles are the electrons produced as a result of the decay of neutrons present inside the nucleus.