Which type of radiation moves at the speed of light and has no charge?

Gamma rays are a form of electromagnetic radiation, similar to visible light but with much higher energy. They travel at the speed of light and have no mass or electrical charge, which allows them to penetrate materials more effectively than charged particles like alpha and beta particles. This lack of charge means that gamma rays do not interact with matter in the same way that charged particles do, making them especially significant in radiation safety and health physics. Understanding this characteristic is vital for recognizing the potential hazards associated with gamma radiation and implementing appropriate safety measures.