* Ionic Bonds: Form when a metal (like calcium, Ca) transfers electrons to a nonmetal (like chlorine, Cl). This transfer creates positively charged ions (cations) and negatively charged ions (anions) that are attracted to each other, forming the bond.

* CaCl₂ Structure: Calcium is a metal in group 2, meaning it tends to lose two electrons to achieve a stable electron configuration. Chlorine is a nonmetal in group 17, meaning it tends to gain one electron to achieve stability. Therefore, one calcium atom (Ca²⁺) bonds with two chlorine atoms (2Cl⁻) to form CaCl₂.

Let me know if you'd like to know more about ionic bonds or other types of chemical bonds!