2008F_chem_125_exam_3_49049r0e

2008F_chem_125_exam_3_49049r0e - Chem 125 Exam #3 Fall 2008...

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Chem 125 Exam #3 Fall 2008 PART A. (4 Points each) 1. Which of the following statements is INCORRECT? a. Waves do not have a very precise location. b. Waves can exhibit interference and diffraction. c. In an electron microscope, electrons behave as waves. d. When a curve ball is throw, the baseball is behaving as a wave. e. Electrons behave as waves in atoms. This is why they are simplistically described as electron clouds in atoms. 2. Which of the following statements is INCORRECT for an electron in an orbital with the principle quantum number, n, = 4 and the angular momentum quantum number, l , = 2. a. This is a 4d orbital. b. The orbital can have at most 2 electrons in it. c. One of the allowed magnetic quantum numbers, m l , is 3. d. One of the allowed magnetic quantum numbers, m l , is -1. e. The allowed spin quantum numbers, m s , are +1/2 and -1/2. 3. For Y (Z =39) a large jump in the ionization energy of an electron is expected after a. 1 electron is removed or ionized. b. 2 electrons are removed. c. 3 electrons are removed. d. 4 electrons are removed. e. 9 electrons are removed. 4. Which of the following electron configurations is correct for gold, Au? a. [Xe] 6s 2 6d 9 b. [Xe] 6s 2 5f 14 6d 9 c. Xe] 6s 2 5d 9 d. [Xe] 6s 2 4f 14 5d 9 e. [Xe] 6s 1 4f 14 5d 10
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Chem 125 Exam #3 Fall 2008 5. According to Hund’s rule, which is the correct electron configuration for Sulfur, S? a. [Ne] 3s
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2008F_chem_125_exam_3_49049r0e - Chem 125 Exam #3 Fall 2008...

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