Answer:
True.
Explanation:
Alpha particles have a mass of 4 atomic mass units (AMU) and a charge of +2, while beta particles have negligible mass and a charge of -1. Due to their larger mass and positive charge, alpha particles have less penetrating power than beta particles. Alpha particles can be stopped by a sheet of paper or a few centimeters of air, while beta particles can penetrate further into materials such as aluminum or plastic.