What type of radiation has a positive charge?

Alpha radiation consists of helium nuclei, which are made up of two protons and two neutrons. Because it contains two positively charged protons, alpha radiation carries a net positive charge. This is an important characteristic that distinguishes it from other types of radiation.

Beta radiation, on the other hand, consists of electrons (beta minus particles) or positrons (beta plus particles). Electrons have a negative charge, while positrons have a positive charge but are generally categorized differently due to their properties. Gamma radiation is composed of high-energy photons and carries no charge at all. Similarly, X-ray radiation is also made up of photons and has no charge.

Thus, among the types of radiation listed, the only one that is positively charged is alpha radiation.