115 Final Exam Questions) With Correct Answers

_____________ is a unique element that does not truly belong to any family. {Ans: Hydrogen}In which species does sulfur have the highest oxidation number? A) S8 (elemental form of sulfur) B) SO2 C) K2SO4 D) H2SO3 E)H2S {Ans: C) K2SO4}There are ________ protons, ________ neutrons, _________ electrons in ^131 I- {Ans: ^131 I- is an ion 53, 78, 54}Perchloric acid {Ans: HClO4}Of the choices below, which one is not an ionic compound? A) PbCl2 B) MoCl6 C) RbCl D) PCl5 E) NaCl {Ans: D) PCl5}In the periodic table, the elements are arranged in ___________. {Ans: order of increasing atomic number}