| A | B |
|---|
| bubble chamber | device using hot liquid to create bubbles to detect radioactivity |
| chain reaction | continuous series of fission reactions |
| cloud chamber | device using cooled gas to condense around radioactive particles |
| electroscope | device with two thin metal leaves used to detect radioactivity |
| Geiger counter | device that detects radioactivity by producing an electric current |
| nuclear fission | splitting a large nucleus into two smaller nuclei of about equal mass |
| nuclear fusion | combining two smaller atomic nuclei to form a single nucleus |
| radioactive | describes a nucleus that gives off nuclear radiation to become stable |
| radioisotope | radioactive isotope |
| tracer | radioactive element whose pathway can be followed in a reaction |
