What Is The Crystal Structure Of Iodine And Calcium Ionic Compound?

The crystal structure of the iodine and calcium ionic compound, CaI2, is classified as a layered structure. The calcium cations (Ca2+) are located between two layers of iodide anions (I-), forming a three-dimensional arrangement. This layering of ions creates weak van der Waals forces between adjacent layers, resulting in a relatively low melting point and the ability to cleave the crystal along certain planes.