Francium[1] (-ii, n.) est elementum chemicum in systemate periodico. More information Proprietates generales ... 87 radon ← francium → radium Cs↑Fr Systema periodicum Proprietates generales Nomen, Symbolus, Numerus Atomicus francium, Fr, 87 Close NotaeLoading content...Nexus externiLoading content...Loading related searches...Wikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads
