| Question | Answer |
| alpha | helium nucleus |
| beta | high energy electron |
| alpha | 2 protons and 2 neutrons |
| gamma | high energy electromagnetic radiation |
| gamma | no mass |
| beta | approx. 1/2000 of the mass of one proton |
| gamma | mass equivalent to 4 protons (mass of a proton = mass of a neutron) |
| gamma | uncharged |
| beta | charge = -1 |
| alpha | charge = +2 |
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