HELP?

What does x represent in the formula for the compound xcl4?

The name of the ion, s2-, is: sulfurous ion sulfide ion sulfur ion sulfate ion

Which statement correctly describes metallic bonds? a. they form when certain atoms lose electrons and other atoms gain electrons. b. they involve an attraction between anions and cations. they always involvpoth a metal and a nonmetal. d. they can only form between atoms of the same element. e. they form because electrons can move freely between atoms.