| français | fra-000 |
| radio-isotope | |
| العربية | arb-000 | نظائر مشعة |
| asturianu | ast-000 | isótopu radioactivu |
| català | cat-000 | radioisòtop |
| 普通话 | cmn-000 | 放射性同位素 |
| Deutsch | deu-000 | Radionuklid |
| eesti | ekk-000 | radioaktiivne isotoop |
| ελληνικά | ell-000 | ραδιοϊσότοπο |
| English | eng-000 | radio-element |
| English | eng-000 | radioactive isotope |
| English | eng-000 | radioisotope |
| English | eng-000 | radionuclide |
| Esperanto | epo-000 | radioaktiva izotopo |
| français | fra-000 | isotope radioactif |
| italiano | ita-000 | radioisotopo |
| русский | rus-000 | радиоактивный изотоп |
| español | spa-000 | isótopo radiactivo |
| español | spa-000 | radioisótopo |