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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.
Gamma rays are photons, so formally massless. Beta decay typically releases an electron or positron and a neutrino (which for all practical purposes is massless). The mass of an electron in (amu) is : 5.49e-4 amu. An alpha particle is a helium...