Radiation is energy that comes from a source and travels through space. It can be in the form of electromagnetic waves, such as X-rays and gamma rays, or particles, such as alpha and beta particles. Radiation is categorized into two main types: ionizing radiation and non-ionizing radiation. Ionizing radiation has enough energy to remove tightly bound electrons from atoms, creating ions, whereas non-ionizing radiation does not carry enough energy to ionize atoms.
