| A | B |
|---|
| radioactive material | any material that is radioactive |
| nuclear fission | produces more radioactivity than nuclear fusion produces |
| charge | conserved during radioactivity |
| Gamma Rays | energy given off during alpha and beta decay, in the form of very high-energy light, has no mass and no chrge |
| nuclear radiation | particles rays that come from some atoms |
| Alpha Particle | a particle made up of two protons and two neutrons |
| mass number | the total numbet of protons and neutrons in a nucleus |
| beta particle | an electron or positron released from a nucleus |
| isotopes | atoms of the same element that have different numbers of neutrons |
