Cobalt is a metal. which best describes the cobalt atom and its interactions with other cobalt atoms?

the valence electrons are weakly attracted to the protons and move amongst the atoms.
the valence electrons are strongly attracted to the protons and stay in the same place.
the nuclear protons are strongly attracted to the neutrons and move amongst the atoms.
the nuclear protons are weakly attracted to the neutrons and stay in the same place.