When a β^- particle is emitted from an unstable nucleus,the atomic mass number of the nucleus

Question

Quizplus · Accepted Answer

The emission of a β (beta) particle, which is an electron or positron, does not change the atomic mass number of the nucleus because the mass of an electron is negligible compared to that of protons and neutrons. The atomic mass number represents the total number of protons and neutrons, and since a beta particle emission involves a neutron changing into a proton (or vice versa), the total count of protons and neutrons remains the same.

When a β- Particle Is Emitted from an Unstable Nucleus,the

When a β^- Particle Is Emitted from an Unstable Nucleus,the