When a β^- particle is emitted from an unstable nucleus,the atomic mass number of the nucleus A)increases by 1. B)decreases by 1. C)increases by 2. D)does not change.

Question

Quizplus · Accepted Answer

The emission of a β particle (an electron or positron) does not change the atomic mass number of the nucleus, as it involves a neutron changing into a proton (or vice versa), which does not affect the total number of nucleons.

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

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