2005 Exam 2 form B2

2005 Exam 2 form B2 - CH 101 EXAM 2 Fall 2005 ­ Form B...

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CH 101 EXAM 2 Fall 2005 - Form B Fill in and bubble in your name, ID#, and section on the scantron form. For question #60 mark B. Mark the best  answer after reading all possible choices. Use a #2 pencil and make clean erasures to insure proper scoring.  When finished, turn in your scantron sheet and show this booklet and your CUID to the proctor. Good Luck! 1. The following three spheres represent atoms in the 3 rd period. Arrange them in order of increasing effective nuclear charge. (smallest Z eff first) A. Atom X < Atom Y < Atom Z B. Atom Z < Atom Y < Atom X C. Atom Y < Atom X < Atom Z D. Atom X < Atom Z < Atom Y 2. Three atoms have the following electron configurations. Which one has the largest (most negative) electron affinity, E ea ? Atom I: ns 2 np 6 Atom II: ns 2 np 4 Atom III: ns 2 np 3 A. I B. II C. III D. All have the same energy. E. I and III 3.  Which of the following elements has the smallest first  ionization energy? A. Cl D. K B. Na E. As C. Be 4. The successive ionization energies of a certain element  are  I = 577.9 kJ/mol,  I = 1820 kJ/mol,  I 3 = 2750 kJ/mol,  I 4  =11,600 kJ/mol, and  I 5  = 14,800 kJ/mol.  This pattern  of ionization energies suggests that the unknown  element is A. K D. Se B. Al E. Kr C. Cl r = 186 r = 117 r = 104 Atom X Atom Y Atom Z
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5. The orbital diagram for a ground-state nitrogen atom is  1s 2s  2p A. ↑↓ ↑↓                 _                 B. ↑↓ ↑↓ ↑↓          ___       C. ↑↓                     _               D. ↑↓ ↑↓ ↑↓         
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This note was uploaded on 04/08/2008 for the course CHEM 101 taught by Professor Rillings during the Spring '06 term at Clemson.

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2005 Exam 2 form B2 - CH 101 EXAM 2 Fall 2005 ­ Form B...

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