Rare radioactive metal that is used especially in optical glass, lasers, nuclear reactors (absorbing neutrons) and permanent magnets. | |
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 : | - |