## Chemistry: The Central Science (13th Edition)

$Ba(BrO_3)_2$
This is an ionic compound, so there will be one cation (barium) and one anion (bromate). The barium ion has a charge of +2, since it has 2 valence electrons. The charge on bromate is -1. To have a neutrally charged compound, there would need to be two bromate ions for each barium ion. Hence, $Ba(BrO_3)_2$.