Consider the chemistries of the elements potassium, calcium, gallium, germanium, and arsenic.
(a) Write a balanced chemical equation depicting the reaction of each element with elemental chlorine.
(b) Describe the bonding in each of the products of the reactions with chlorine as ionic or covalent.
(c) Draw Lewis electron dot structures for the products of the reactions of gallium and arsenic with chlorine. What are their electron pair and molecular geometries?