Praseodymium. Vial containing samples of the rare earth metal Praseodymium (Pr). The rare earth metals,or rare earth elements,are a set of seventeen chemical elements in the periodic table,specifically the fifteen lanthanides plus scandium and yttrium. Praseodymium is a soft silvery metallic element. It is used in carbon arc lights and to colour glass and enamels yellow | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 4181 px × 4181 px |
Model Release : | Non requis |
Restrictions : | - |