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| radioaktives Element | |||
| radioaktives Element (a chemical element, not a nuclide) | |||
| Radioelement n (a chemical element, not a nuclide) | |||
| Radioelement n | |||
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radioactive element : 11 a las frases, 5 temas |
| Ciencias naturales | 1 |
| Electrónica | 4 |
| Física | 1 |
| Física nuclear | 1 |
| Irradiación radiactiva | 4 |