Suchen
Promethium
01
a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium
Beispiel
Nahegelegene Wörter
App Herunterladen
Download Mobile App
Suchen
a soft silvery metallic element of the rare earth group having no stable isotope; was discovered in radioactive form as a fission product of uranium