Test Bank FOR Chemical Principles 8th Edition by Steven S. Zumdahl Test Bank FOR Chemical Principles 8th Edition by Steven S. Zumdahl Test Bank FOR Chemical Principles 8th Edition by Steven S. Zumdahl 1. Bromine exists naturally as a mixture of bromine-79 and bromine-81 isotopes. An atom of bromine-79 contains a. 79 protons, 79 electrons, and 35 neutrons. b. 35 protons, 44 neutrons, and 35 electrons. c. 44 protons, 44 electrons, and 35 neutrons. d. 34 protons and 35 electrons only. e. 35 protons, 79 neutrons, and 35 electrons. ANSWER: b POINTS: 1 DIFFICULTY: easy TOPICS: 3.1 KEYWORDS: atomic theory of matter | early atomic theory | general chemistry | isotope 2. The atomic mass of rhenium is 186.2. Given that 37.1% of natural rhenium is rhenium-185, what is the other stable isotope? a. b. c. d. e. ANSWER: b POINTS: 1 DIFFICULTY: easy TOPICS: 3.1 KEYWORDS: atomic theory of matter | early atomic theory | general chemistry | isotope
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