What does particulate radiation consist of?

Particulate radiation consists of small particles that have mass and energy. These particles can include alpha particles, beta particles, and neutrons. The key characteristic of particulate radiation is that it is made up of discrete entities, which can cause ionization in substances they interact with due to their mass and charge. In contrast, waves of energy or photons (like those found in electromagnetic radiation) do not have mass and exist as energy waves rather than as particles. Therefore, the correct response highlights the defining feature of particulate radiation, distinguishing it from other forms of radiation. Understanding this concept is crucial for recognizing the differences in radiation types and their respective behaviors in various applications, including in dental practices and safety protocols.