| Aktiva substanser | Betyg | Bibliogr. | Expandera | |
|---|---|---|---|---|
| 1 | Jodradioisotoper | 100 | + | |
| 2 | Kolradioisotoper | 90 | + | |
| 3 | Tritium | 81 | + | |
| 4 | Radioaktiva spårämnen | 31 | + | |
| 5 | Koboltradioisotoper | 31 | + | |
| 6 | Kromradioisotoper | 26 | + | |
| 7 | Syrgasradioisotoper | 23 | + | |
| 8 | Kalciumradioisotoper | 22 | + | |
| 9 | Järnradioisotoper | 22 | + | |
| 10 | Fosforradioisotoper | 19 | + | |
| 11 | Indiumradiosotoper | 13 | + | |
| 12 | Yttriumradioisotoper | 12 | + | |
| 13 | Fluorradioisotoper | 12 | + | |
| 14 | Xenonradioisotoper | 12 | + | |
| 15 | Talliumradioisotoper | 10 | + |