| Aktiva substanser | Betyg | Bibliogr. | Expandera | |
|---|---|---|---|---|
| 1 | Jodradioisotoper | 100 | + | |
| 2 | Kolradioisotoper | 90 | + | |
| 3 | Kalciumradioisotoper | 83 | + | |
| 4 | Tritium | 63 | + | |
| 5 | Fosforradioisotoper | 57 | + | |
| 6 | Fluorradioisotoper | 40 | + | |
| 7 | Svavelradioisotoper | 36 | + | |
| 8 | Kromradioisotoper | 27 | + | |
| 9 | Radioaktiva spårämnen | 22 | + | |
| 10 | Xenonradioisotoper | 21 | + | |
| 11 | Natriumradioisotoper | 20 | + | |
| 12 | Indiumradiosotoper | 18 | + | |
| 13 | Yttriumradioisotoper | 17 | + | |
| 14 | Järnradioisotoper | 14 | + | |
| 15 | Koboltradioisotoper | 12 | + | |
| 16 | Kopparradioisotoper | 12 | + | |
| 17 | Talliumradioisotoper | 8 | + |