q2f08 - Version PREVIEW Quiz 2 JOHNSON (53755) 1 This...

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Unformatted text preview: Version PREVIEW Quiz 2 JOHNSON (53755) 1 This print-out should have 8 questions. Multiple-choice questions may continue on the next column or page find all choices before answering. LDE Electronic configuration 001 001 5.0 points What is the electronic configuration of a Sele- nium atom (Se)? 1. [Kr] 4 s 2 4 f 14 4 d 10 4 p 4 2. [Kr] 4 s 2 4 d 10 4 p 4 3. [Kr] 4 s 2 3 d 10 4 p 4 4. [Ar]4 s 2 4 d 10 4 p 4 5. [Ar]4 s 2 3 d 10 4 p 4 correct Explanation: Se has 34 electrons, 18 of which are ac- counted for by the shorthand notation [Ar], and the remaining 16 of which much first fill the 4 s subshell (2 electrons), the 3 d subshell (10 electrons) and finally the 4 p subshell (the last 4 electrons). LDE Electronic configuration 002 002 5.0 points What is the electronic configuration of a monovalent Calcium cation (Ca + )? 1. [Ne] 3 s 2 3 p 6 2. [Ar] 3. [Ar]4 s 2 3 d 1 4. [Ar]4 s 2 5. [Ar]4 s 1 correct 6. [Ar]4 s 2 4 p 1 Explanation: Ca + has 19 electrons, 18 of which are ac- counted for by the shorthand notation [Ar], and the single remaining electron must be put...
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This note was uploaded on 03/04/2011 for the course CH 302 taught by Professor Holcombe during the Spring '07 term at University of Texas at Austin.

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q2f08 - Version PREVIEW Quiz 2 JOHNSON (53755) 1 This...

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