What Type of Bond Is Calcium Chloride?

Rebecca Siegel/CC-BY 2.0

Calcium chloride, or CaCl2, is composed of two Cl- anions ionically bound to a central calcium atom. Calcium has a 2+ charge, and the two chlorine ions each have a 1- charge. Forming ionic bonds with calcium, the chlorine ions achieve full valence electron shells and satisfy the octet rule.