Answer:
36. (d)
38. (c)
Step-by-step explanation:
36. Calcium is a metal. Chlorine is a nonmetal. So they form an ionic bond.
Calcium ions have a +2 charge. Chlorine ions have a -1 charge. So there are two Cl atoms per Ca atom.
(d) CaClâ‚‚, ionic
38. Noble gases are elements found on the far right side of the periodic table (helium, neon, argon, krypton, xenon, etc.)
(c) Ne, Ar, Kr