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skyp
Alpha: alpha rays consists of alpha particles so they have a charge of two positive and a mass of 4.

Beta: beta rays consists of electrons so the have a charge of negative one and no charge.

Gamma: gamma rays have no mass and no charge
meerkat18
Alpha particles are likened to a helium atom that has a proton and electron number of  two  and an atomic mass of 4. Beta rays are composed of electrons that have a charge of negative one but no charge.  Gamma rays on the other hand are the lightest since they have no mass and no charge

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