Knowing Alpha, Beta & Gama Radioactive Radiation And How To Protect Yourself From It 

Alpha Particle is made of two neutrons and two protons, basically a Helium Nuclious without the atoms.
Beta Particle is an ionized free-running rogue electron
Gama is not a particle with mass, it is an extremely high-frequency photon with very high energy, which makes the most penetrating radiation.