Promethium[1] (-ii, n.) est elementum chemicum systematis periodici. More information Proprietates generales ... 61 neodymium ← promethium → samarium Pm↓Np Systema periodicum Proprietates generales Nomen, Symbolus, Numerus Atomicus promethium, Pm, 61 Close NotaeLoading content...Nexus externiLoading content...Loading related searches...Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads
