Which type of radioactive particle (alpha, beta, or gamma) is most harmful to humans, and why?

• None of these are harmful
• Alpha particles, because they ore the largest
• Gamma rays, because they have the most energy
• Beta particles, because they are the fastest

Gamma rays are the most harmful type of radioactive particle to humans. This is because gamma rays have the highest energy and can penetrate deeper into the body compared to alpha and beta particles. Gamma rays can cause significant damage to cells and DNA, leading to various health effects including radiation sickness, cancer, and genetic mutations.