فرمول شیمیایی ترکیب‌های یونی زیر را بنویسید (یا نام‌گذاری کنید): $NaCl, NaF, NaBr, NaI, KCl, KF, KBr, KI, LiCl, LiF, LiBr, LiI, Li_{2}O, K_{2}O, Na_{2}O, Rb_{2}O, Rb_{2}S, K_{2}S, Na_{2}S, CaF_{2}, MgF_{2}, CaCl_{2}, CaBr_{2}, CaI_{2}, CaO, CaS, MgBr_{2}, MgCl_{2}, MgI_{2}, BeCl_{2}, BCl_{3}, AlCl_{3}, GaCl_{3}, GaBr_{3}, AlI_{3}, AlF_{3}, Al_{2}O_{3}, Al_{2}S_{3}, AlN, GaN, Mg_{3}N_{2}, Ca_{3}N_{2}, MnCl_{2}, MnO, Mn_{2}O_{3}, Fe_{2}O_{3}, FeO, Fe_{2}S_{3}, FeS, CrO, CoO, Cr_{2}O_{3}, CuO, CdO, HgCl_{2}, Hg_{2}Cl_{2}, CdO, CdS, CdCl_{2}, PbO, PbO_{2}, PbCl_{2}, PbCl_{4}, PbS, PbS_{2}, Ag_{2}O, Ag_{2}S, Cu_{2}S, N_{2}O_{3}, KCN, NO_{2}, K_{3}P, Li_{3}N, Li_{3}P, Mg_{3}P_{2}, Ca_{3}P_{2}, Ba_{3}P_{2}$