,CHAPTER 1
1) What is the ground-state electronic configuration of a carbon atom?
A) 1s 2, 2s 2, 2p 5
B) 1s 2, 2s 2, 2p 2
C) 1s2, 2s2, 2p6
D) 1s2, 2s2, 2p4
2) What is the ground-state electronic configuration of a fluorine atom?
A) 1s2, 2s2, 2p2
B) 1s2, 2s2, 2p3
C) 1s2, 2s2, 2p4
D) 1s2, 2s2, 2p5
3) What is the ground-state electronic configuration of a magnesium cation (Mg2+)?
A) 1s2, 2s2, 2p6
B) 1s2, 2s2, 2p6, 3s1
C) 1s2, 2s2, 2p6, 3s2
D) 1s2, 2s2, 2p6, 3s2, 3p2
4) What is the ground-state electronic configuration of a chlorine anion (Cl−)?
A) 1s2, 2s2, 2p6
B) 1s2, 2s2, 2p6, 3s2, 3p6
C) 1s2, 2s2, 2p6, 3s2, 3p5
D) 1s2, 2s2, 2p6, 3s2, 3p4
Version 1 1
,5) Which of the following statements about valence electrons is true?
A) They are the most tightly held electrons.
B) They do not participate in chemical reactions.
C) They are the outermost electrons.
D) They reveal the period number of a second-row element.
6) Which of the following atoms will have a full 3s orbital in the ground state?
A) Hydrogen
B) Lithium
C) Potassium
D) Rubidium
7) Which of the following statements about bonding is true?
A) Covalent bonds result from the transfer of electrons from one element to another.
B) Ionic bonds result from the transfer of electrons from a metal to a non-metal.
C) Ionic bonds result from the sharing of electrons between two non-metals.
D) Covalent bonds result from the sharing of electrons between two metals.
8) Which of the following would you expect to have ionic bonds?
A) CO
B) FBr
C) NF3
D) NaCl
Version 1 2
, 9) Which of the following molecules has nonpolar covalent bonds?
A) HCl
B) N2
C) CHCl 3
D) NO
10) Which of the following molecules contain both covalent and ionic bonds?
A) I, II
B) I, IV
C) II, III
D) II, IV
11) Which of the following would most likely form an ionic bond?
A) I
B) II
C) III
D) IV
12) Which of the following statements correctly describes the typical number of bonds for
carbon, nitrogen, and oxygen in most neutral organic molecules?
Version 1 3
1) What is the ground-state electronic configuration of a carbon atom?
A) 1s 2, 2s 2, 2p 5
B) 1s 2, 2s 2, 2p 2
C) 1s2, 2s2, 2p6
D) 1s2, 2s2, 2p4
2) What is the ground-state electronic configuration of a fluorine atom?
A) 1s2, 2s2, 2p2
B) 1s2, 2s2, 2p3
C) 1s2, 2s2, 2p4
D) 1s2, 2s2, 2p5
3) What is the ground-state electronic configuration of a magnesium cation (Mg2+)?
A) 1s2, 2s2, 2p6
B) 1s2, 2s2, 2p6, 3s1
C) 1s2, 2s2, 2p6, 3s2
D) 1s2, 2s2, 2p6, 3s2, 3p2
4) What is the ground-state electronic configuration of a chlorine anion (Cl−)?
A) 1s2, 2s2, 2p6
B) 1s2, 2s2, 2p6, 3s2, 3p6
C) 1s2, 2s2, 2p6, 3s2, 3p5
D) 1s2, 2s2, 2p6, 3s2, 3p4
Version 1 1
,5) Which of the following statements about valence electrons is true?
A) They are the most tightly held electrons.
B) They do not participate in chemical reactions.
C) They are the outermost electrons.
D) They reveal the period number of a second-row element.
6) Which of the following atoms will have a full 3s orbital in the ground state?
A) Hydrogen
B) Lithium
C) Potassium
D) Rubidium
7) Which of the following statements about bonding is true?
A) Covalent bonds result from the transfer of electrons from one element to another.
B) Ionic bonds result from the transfer of electrons from a metal to a non-metal.
C) Ionic bonds result from the sharing of electrons between two non-metals.
D) Covalent bonds result from the sharing of electrons between two metals.
8) Which of the following would you expect to have ionic bonds?
A) CO
B) FBr
C) NF3
D) NaCl
Version 1 2
, 9) Which of the following molecules has nonpolar covalent bonds?
A) HCl
B) N2
C) CHCl 3
D) NO
10) Which of the following molecules contain both covalent and ionic bonds?
A) I, II
B) I, IV
C) II, III
D) II, IV
11) Which of the following would most likely form an ionic bond?
A) I
B) II
C) III
D) IV
12) Which of the following statements correctly describes the typical number of bonds for
carbon, nitrogen, and oxygen in most neutral organic molecules?
Version 1 3
