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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.
BECAUSE for the radiations the order of mass is 4 > 1/1850 > 0, and for electric charge the order is +2 > -1 > 0, i.e. alpha > beta > gamma for both trends in mass and charge. A single alpha particles travelling at 1/10th the speed of light can devastate living cells in relatively small localised area.