kanyatan bab Flerovium lan Actinium
Facts Interesting
ora Cepak
ora Cepak
sumber
NA
Dijupuk dening Nambani Radium karo Neutron, Ores logam
sing katutup
Joint Institute for Nuclear Research and Lawrence Livermore National Laboratory
Friedrich Oskar Giesel
Discovery
ing taun 1999
ing taun 1902