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

$CoCO_3$ is an ionic compound
Since Cobalt (Co) is a metal, and the carbonate ion $(C{O_3}^{2-})$ is made of nonmetal elements, $CoCO_3$ is an ionic compound. It is formed by the combination of a $Co^{2+}$ and a $CO{_3}^{2-}$ ion.