110_Fa11_Ex1-A

110_Fa11_Ex1-A - CHEMISTRY 110 EXAM 1 SEPTEMBER 19, 2011...

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Unformatted text preview: CHEMISTRY 110 EXAM 1 SEPTEMBER 19, 2011 FORM A ----------------------------------------------------------------------------------- 1. What is the principal quantum number of the lowest energy d subshell? A. 1 B. 2 C. 3 D. 4 E. 5 ----------------------------------------------------------------------------------- 2. How many unpaired electrons are in the ground state of Fe? A. 0 B. 1 C. 2 D. 3 E. 4 ----------------------------------------------------------------------------------- 3. Which of the following ions has the largest ionic radius? A. Cl B. Al 3+ C. Mg 2+ D. Na + E. H +----------------------------------------------------------------------------------- ----------------------------------------------------------------------------------- 4. Which of the following statements is true ? A. ! ! ! !" has more protons than neutrons. B. ! ! ! ! has more electrons than protons. C. ! ! !" has more neutrons than ! ! !" . D. !" has the same number of protons and neutrons E. ! ! ! !" has fewer electrons than !" ----------------------------------------------------------------------------------- 5. What is the frequency associated with green light that has ! = 532 nm? A. 5.64 ! 10 5 Hz B. 1.74 ! 10 15 Hz C. 1.74 ! 10 6 Hz D. 5.64 ! 10 14 Hz E. 532 Hz ----------------------------------------------------------------------------------- 6. Which of the following shows an incorrect set of quantum numbers for an electron in the given orbital? Orbital n ! m ! A. 2s 2 0 0 B. 1s 1 0 0 C. 2p 2 1 0 D. 3p 3 1 1 E. 4d 4 0 0 ----------------------------------------------------------------------------------- ----------------------------------------------------------------------------------- 7. Which of the following represents an orbital in which a 3d electron could be found? A. 1 only B. 2 only C. 4 only D. 1 and 4 only E. 3 and 5 only ----------------------------------------------------------------------------------- 8. Rank the following in order of increasing polarity. 1. Cl Cl 2. K F 3. C F 4. C O A. Cl Cl < K F < C F < C O B. Cl Cl < C F < C O < K F C. Cl Cl < C O < C F < K F D. K F < Cl Cl < C O < C F E. C O < C F < K F < Cl Cl ----------------------------------------------------------------------------------- ----------------------------------------------------------------------------------- 9. Which one of these molecules does NOT have a lone pair on the central atom?...
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110_Fa11_Ex1-A - CHEMISTRY 110 EXAM 1 SEPTEMBER 19, 2011...

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