Gamma comes as a result of alpha or beta. Gammas covers a bigger area than beta and alpha and is in that way more dangerous, but if you ever get alpha radiation inside of you, that is very dangerous.
Of alpha, beta and gamma radiation, gamma radiation has the greater ability to penetrate either shielding or living tissue. The penetration issue aside, a contact source that is an alpha emitter can...
Gamma radiation is the fastest speed of alpha radiation= speed of light/10 speed of beta radiation = almost equal to speed of light speed of gamma radiation = equal to that of light
Alpha, Beta, and Gamma radiation are not the same. Alpha radiation emits a helium atom, Beta radiation emits a beta particle, which acts like a negative proton, and Gamma radiation emits gamma rays,...