PE1 Solutions - Pietzsch, Ashley Exam 1 Due: Sep 21 2006,...

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Unformatted text preview: Pietzsch, Ashley Exam 1 Due: Sep 21 2006, 2:00 pm Inst: Brodbelt 1 This print-out should have 25 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. The due time is Central time. This exam should have 25 questions. Multiple-choice questions may continue on the next column or page. You must fill in your version code (located at the top of your exam) on your bubblesheet, along with your UTEID and name. Save the hardcopy of the exam and self-grade it to make sure your score agrees with the computer-graded score. Your score will be posted on the HW Service Web site, usually within 24 hours. Programmable calculators and cell phones may not be used. You may not leave the room during the exam. If you must leave the room, the exam is over for you. GOOD LUCK! 001 (part 1 of 1) 10 points Whatistheorderofdecreasingatomicradius? 1. bismuth, phosphorus, antimony 2. antimony, bismuth, phosphorus 3. phohshorus, bismuth, antimony 4. phosphorus, antimony, bismuth 5. antimony, phosphorus, bismuth 6. bismuth, antimony, phosphorus correct Explanation: phosphorous (110 pm) < antimony (141 pm) < bismuth (182 pm) 002 (part 1 of 1) 10 points The number of unpaired electrons in the low- est energy electron configuration of an iso- lated sulfur atom is 1. 0. 2. 4. 3. 2. correct 4. 1. 5. 3. Explanation: 003 (part 1 of 1) 10 points In the order of occupancy of electronic energy levels, the level occupied after 3 d is 1. 6 p . 2. 4 d . 3. 5 d . 4. 4 f . 5. 4 p . correct Explanation: 004 (part 1 of 1) 10 points How many protons, neutrons, and electrons are present in the 13 C- ion? 1. 6 protons, 7 neutrons, 5 electrons 2. 6protons, 7neutrons, 7electrons correct 3. 7 protons, 6 neutrons, 8 electrons 4. 7 protons, 6 neutrons, 5 electrons 5. 6 protons, 7 neutrons, 8 electrons 6. 7 protons, 6 neutrons, 6 electrons 7. 7 protons, 6 neutrons, 7 electrons 8. 6 protons, 7 neutrons, 6 electrons 9. 7 protons, 7 neutrons, 7 electrons Explanation: Carbon can only have 6 protons. 13 - 6 = 7 neutrons 6 + 1 = 7 electrons 005 (part 1 of 1) 10 points The photoelectric effect confirms that Pietzsch, Ashley Exam 1 Due: Sep 21 2006, 2:00 pm Inst: Brodbelt 2 1. photons can be converted to electrons, thus proving the dual particle/wave nature of photons. 2. photons can generate electrical fields, showing that photons carry charge....
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PE1 Solutions - Pietzsch, Ashley Exam 1 Due: Sep 21 2006,...

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