What describes particulate radiation?

Particulate radiation is characterized by the presence of tiny particles that possess mass and can move at high speeds. This type of radiation includes alpha particles, beta particles, and neutrons, all of which have a physical presence and contribute to the energy transfer in matter when they collide with atoms. Unlike electromagnetic radiation, which consists of waves or bundles of energy with no mass—such as light waves or gamma rays—particulate radiation involves actual particles that have distinct properties and behaviors.

In contrast to the other choices, which refer to forms of radiation that do not involve physical particles, identifying particulate radiation specifically with fast-moving tiny particles highlights its unique characteristic of having mass and momentum, influencing how it interacts with other materials, including biological tissues. This understanding is crucial for radiation safety and protection practices in medical and industrial applications.