Extremely radioactive metal present in very low quantities in uranium ore, it is used mainly in medicine to treat cancer. | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Science Source / QA International |
Taille de l’image : | 2956 px × 2956 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |