Which one or more of the following statements is true in general?
A) Alpha particles are more able to penetrate matter than beta particles and gamma rays.
B) Alpha particles are less able to penetrate matter than beta particles and gamma rays.
C) Alpha particles are less able to penetrate matter than beta particles but more able to do so than gamma rays.
D) Alpha particles are more able to penetrate matter than beta particles but less able to do so than gamma rays.

Question

Quizplus · Accepted Answer

Alpha particles are relatively large and heavy, consisting of two protons and two neutrons, making them highly ionizing but not very penetrating. Beta particles are much smaller and lighter, consisting of high-energy electrons, and can penetrate further into materials. Gamma rays are electromagnetic radiation and are highly penetrating due to their high energy and lack of charge. Therefore, alpha particles are less able to penetrate matter than beta particles and gamma rays.

Which One or More of the Following Statements Is True