Jan 31 HW-solutions - chauhan (mmc2762) Jan 31 HW sparks...

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Unformatted text preview: chauhan (mmc2762) Jan 31 HW sparks (51150) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. Preview sections 12.14 (just take a look at the graphs), 12.15, 13.2, 13.4 001 10.0 points A neutral isolated atom has a ground state configuration of 1 s 2 2 s 2 2 p 6 3 s 2 3 p 3 . Identify the element. 1. argon (Ar) 2. cobalt (Co) 3. The question cannot be answered unless the atomic weight is known. 4. vanadium (V) 5. phosphorus (P) correct Explanation: 002 10.0 points Depict the electron configuration for silicon using rare gas (shorthand) notation. 1. [Ne] 3 s 2 3 p 2 correct 2. [Ne] 3 s 2 3 p 4 3. 1 s 2 2 s 2 2 p 6 3 s 2 3 p 2 4. [Ne] 3 p 2 Explanation: Use either the periodic table method or the pyramid method to solve. 003 10.0 points Which of the following valence-shell config- urations 4 s 4 p I) II) III) IV) could describe a neutral atom in its ground...
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Jan 31 HW-solutions - chauhan (mmc2762) Jan 31 HW sparks...

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