True or False Quiz - Chapter 8

True or False Quiz - Chapter 8 - neutrons in the nucleus....

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True or False Quiz (See related pages) Results Reporter Out of 5 questions, you answered 5 correctly with a final grade of 100% 5 correct (100%) 0 incorrect (0%) 0 unanswered (0%) Your Results: The correct answer for each question is indicated by a . 1 CORRECT An element is a pure substance that cannot be broken down into anything simpler by physical or chemical means. A) True B) False 2 CORRECT J.J. Thomson discovered that cathode rays were really a stream of electrons. A) True B) False 3 CORRECT The atomic number of an element is the total number of protons and
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Unformatted text preview: neutrons in the nucleus. A) True B) False 4 CORRECT An electron moves from one allowed orbit to another only when it absorbs or emits a fixed amount of energy. A) True B) False 5 CORRECT Protons and neutrons are so much more massive than electrons that you can neglect the mass of electrons when determining the mass of an atom. A) True B) False 6/1/2011 True or False Quiz mcgraw-hill.com//true_or_false_quiz.h 1/1...
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