| Hint | Answer | Extra Info |
| 238 92 U --> 4 2 He + 234 90 Th + 2(0 0 γ) | |
| beta-particle production converts a _____ to a _____ | |
| gamma-ray production | |
| 234 90 Th --> 234 91 Pa + 0 -1 e | |
| 201 80 Hg + 0 -1 e --> 201 79 Au + 0 0 γ | |
| positron production | |
| 238 90 Th --> 4 2 He + 226 88 Ra | |
| beta-particle production | |
| alpha-particle production | |
| positron production converts a _____ to a _____ | |