Thulium. Sample of the rare earth metal Thulium (Tm). 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. Thulium is a soft silvery-grey metallic element. It is used in X-ray devices and solid-state lasers | |
Licence : | Droits gérés |
Crédit: | Science Photo Library |
Taille de l’image : | 3943 px × 3944 px |
Model Release : | Non requis |
Restrictions : | - |