4 neutrons metallic July 8, 2019 16 32 64 128 4 neutrons metallic who am i 4 neutrons metallic 1 valence electron 4 neutrons metallic element 4 neutrons metallic 27 electrons 4 neutrons metallic group 1 4 neutrons metallic symbol 4 neutrons metallic periodic table What element has 4 neutrons metallic
