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, Chapter 1: Structure and Bondingd d d d
1. What is the ground-state electronic configuration of a carbon atom?
d d d d d d d d d
A) 1s2, 2s2, 2p5 B) 1s2, 2s2, 2p2 C) 1s2, 2s2, 2p6 D) 1s2, 2s2, 2p4
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2. What is the ground-state electronic configuration of a fluorine atom?
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A) 1s2, 2s2, 2p2 B) 1s2, 2s2, 2p3 C) 1s2, 2s2, 2p4 D) 1s2, 2s2, 2p5
d d d d d d d d d d d
3. What is the ground-state electronic configuration of a magnesium cation (Mg2+)?
d d d d d d d d d d
A) 1s2, 2s2, 2p6 d C) 1s2, 2s2, 2p6, 3s2
d d d d
B) 1s2, 2s2, 2p6, 3s1 d d d D) 1s2, 2s2, 2p6, 3s2, 3p2 d d d d
4. What is the ground-state electronic configuration of a chlorine anion (Cl—)?
d d d d d d d d d d
A) 1s2, 2s2, 2p6 d dC) 1s2, 2s2, 2p6, 3s2, 3p5 d d d d
B) 1s2, 2s2, 2p6, 3s2, 3p6
d d d d D) 1s2, 2s2, 2p6, 3s2, 3p4 d d d d
5. Which of the following statements about valence electrons is true?
d d d d d d d d d
A) They are the most tightly held electrons.
d d d d d d
B) They do not participate in chemical reactions.
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C) They are the outermost electrons.
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D) They reveal the period number of a second-row element.
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6. Which of the following statements about bonding is true?
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A) Covalent bonds result from the transfer of electrons from one element to another.
d d d d d d d d d d d d
B) Ionic bonds result from the transfer of electrons from a metal to a non-metal.
d d d d d d d d d d d d d
C) Ionic bonds result from the sharing of electrons between two non-metals.
d d d d d d d d d d
D) Covalent bonds result from the sharing of electrons between two metals.
d d d d d d d d d d
7. Which of the following would you expect to have ionic bonds?
d d d d d d d d d d
A) CO B) FBr C) NF3 D) NaCl d d d
8. Which of the following molecules has nonpolar covalent bonds?
d d d d d d d d
A) HCl B) N2 C) CHCl3 D) NO d d d
9. Which of the following molecules contain both covalent and ionic bonds?
d d d d d d d d d d
A) I, II d B) I, IV C) II, III D) II, IV
d d d d d d
10. Arrange the following bonds in decreasing order of ionic character, putting the most
d d d d d d d d d d d d
ionic first.
d d
A) I > II > III > IV
d d d d d d C) IV > III > II > I
d d d d d d
B) IV > II > I > III
d d d d d d D) IV > II > III > I d d d d d d
11. Which of the following statements correctly describes the typical number of bonds for
d d d d d d d d d d d d
carbon, nitrogen, and oxygen in most neutral organic molecules?
d d d d d d d d d
A) Carbon forms 4 covalent bonds, nitrogen forms 2 covalent bonds and oxygen forms
d d d d d d d d d d d d
3 covalent bonds.
d d d
B) Carbon forms 4 covalent bonds, nitrogen forms 3 covalent bonds and oxygen forms
d d d d d d d d d d d d
2 covalent bonds.
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C) Carbon forms 4 covalent bonds, nitrogen forms 5 covalent bonds and oxygen forms
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2 covalent bonds.
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D) Carbon forms 4 covalent bonds, nitrogen forms 5 covalent bonds and oxygen forms
d d d d d d d d d d d d
4 covalent bonds.
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12. Which is not an acceptable Lewis structure for the anion CH2NCO—?
d d d d d d d d d d
A) I B) II C) III D) IV
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13. Which of the following Lewis structures is correct?
d d d d d d d
A) I B) II C) III D) IV
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14. Which of the following Lewis structures is correct?
d d d d d d d
A) I, II d B) I, III C) II, III D) III, IV
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15. Which is the correct Lewis structure for acetic acid (CH3CO2H)?
d d d d d d d d d
A) I B) II C) III D) IV
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d
, Chapter 1: Structure and Bondingd d d d
1. What is the ground-state electronic configuration of a carbon atom?
d d d d d d d d d
A) 1s2, 2s2, 2p5 B) 1s2, 2s2, 2p2 C) 1s2, 2s2, 2p6 D) 1s2, 2s2, 2p4
d d d d d d d d d d d
2. What is the ground-state electronic configuration of a fluorine atom?
d d d d d d d d d
A) 1s2, 2s2, 2p2 B) 1s2, 2s2, 2p3 C) 1s2, 2s2, 2p4 D) 1s2, 2s2, 2p5
d d d d d d d d d d d
3. What is the ground-state electronic configuration of a magnesium cation (Mg2+)?
d d d d d d d d d d
A) 1s2, 2s2, 2p6 d C) 1s2, 2s2, 2p6, 3s2
d d d d
B) 1s2, 2s2, 2p6, 3s1 d d d D) 1s2, 2s2, 2p6, 3s2, 3p2 d d d d
4. What is the ground-state electronic configuration of a chlorine anion (Cl—)?
d d d d d d d d d d
A) 1s2, 2s2, 2p6 d dC) 1s2, 2s2, 2p6, 3s2, 3p5 d d d d
B) 1s2, 2s2, 2p6, 3s2, 3p6
d d d d D) 1s2, 2s2, 2p6, 3s2, 3p4 d d d d
5. Which of the following statements about valence electrons is true?
d d d d d d d d d
A) They are the most tightly held electrons.
d d d d d d
B) They do not participate in chemical reactions.
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C) They are the outermost electrons.
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D) They reveal the period number of a second-row element.
d d d d d d d d
6. Which of the following statements about bonding is true?
d d d d d d d d
A) Covalent bonds result from the transfer of electrons from one element to another.
d d d d d d d d d d d d
B) Ionic bonds result from the transfer of electrons from a metal to a non-metal.
d d d d d d d d d d d d d
C) Ionic bonds result from the sharing of electrons between two non-metals.
d d d d d d d d d d
D) Covalent bonds result from the sharing of electrons between two metals.
d d d d d d d d d d
7. Which of the following would you expect to have ionic bonds?
d d d d d d d d d d
A) CO B) FBr C) NF3 D) NaCl d d d
8. Which of the following molecules has nonpolar covalent bonds?
d d d d d d d d
A) HCl B) N2 C) CHCl3 D) NO d d d
9. Which of the following molecules contain both covalent and ionic bonds?
d d d d d d d d d d
A) I, II d B) I, IV C) II, III D) II, IV
d d d d d d
10. Arrange the following bonds in decreasing order of ionic character, putting the most
d d d d d d d d d d d d
ionic first.
d d
A) I > II > III > IV
d d d d d d C) IV > III > II > I
d d d d d d
B) IV > II > I > III
d d d d d d D) IV > II > III > I d d d d d d
11. Which of the following statements correctly describes the typical number of bonds for
d d d d d d d d d d d d
carbon, nitrogen, and oxygen in most neutral organic molecules?
d d d d d d d d d
A) Carbon forms 4 covalent bonds, nitrogen forms 2 covalent bonds and oxygen forms
d d d d d d d d d d d d
3 covalent bonds.
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B) Carbon forms 4 covalent bonds, nitrogen forms 3 covalent bonds and oxygen forms
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2 covalent bonds.
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C) Carbon forms 4 covalent bonds, nitrogen forms 5 covalent bonds and oxygen forms
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2 covalent bonds.
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D) Carbon forms 4 covalent bonds, nitrogen forms 5 covalent bonds and oxygen forms
d d d d d d d d d d d d
4 covalent bonds.
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12. Which is not an acceptable Lewis structure for the anion CH2NCO—?
d d d d d d d d d d
A) I B) II C) III D) IV
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13. Which of the following Lewis structures is correct?
d d d d d d d
A) I B) II C) III D) IV
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14. Which of the following Lewis structures is correct?
d d d d d d d
A) I, II d B) I, III C) II, III D) III, IV
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15. Which is the correct Lewis structure for acetic acid (CH3CO2H)?
d d d d d d d d d
A) I B) II C) III D) IV
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