Vanadium and chromium solutions. Conical flasks containing solutions of vanadium (II) ions (purple) and chromium (III) ions (green). These are two of the transition metals | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Andrew Lambert Photography |
Taille de l’image : | 4916 px × 3615 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |