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Gamma ray is a type of radiation that has no mass & no charge. Gamma rays have a high penetrating power. Text us. Tags: gamma ray, radiation, mass. Wednesday, February 01 2012.
Radiation can be broken down in two major classes, based on their energy and penetrating capabilities, these are ionizing and non-ionizing radiation. Non-ionizing radiation is unable to directly alter the chemical structure of materials, and includes radio, microwaves, infra-red, and visible light.