
Concept explainers
Draw one valid Lewis structure for each compound. Assume the atoms are arranged as drawn.

(a)
Interpretation: A valid Lewis structure for the given compound is to be drawn.
Concept introduction: The arrangement of valence electrons among the atoms present in a molecule is represented by the Lewis structure of that molecule. The electron pairs in the molecule are considered to be delocalized.
Answer to Problem 1.43P
The valid Lewis structure for the given compound is,
Explanation of Solution
The given compound is
Figure 1
The valence electrons are counted as,
The bonds and lone pairs are added in the given arrangement of atoms. The valid Lewis structure is,
Figure 2
The valid Lewis structure for the given compound is shown in Figure 2.

(b)
Interpretation: A valid Lewis structure for the given compound is to be drawn.
Concept introduction: The arrangement of valence electrons among the atoms present in a molecule is represented by the Lewis structure of that molecule. The electron pairs in the molecule are considered to be delocalized.
Answer to Problem 1.43P
The valid Lewis structure for the given compound is,
Explanation of Solution
The given compound is
Figure 3
The valence electrons are counted as,
The bonds and lone pairs are added in the given arrangement of atoms. The valid Lewis structure is,
Figure 4
The valid Lewis structure for the given compound is shown in Figure 4.

(c)
Interpretation: A valid Lewis structure for the given compound is to be drawn.
Concept introduction: The arrangement of valence electrons among the atoms present in a molecule is represented by the Lewis structure of that molecule. The electron pairs in the molecule are considered to be delocalized.
Answer to Problem 1.43P
The valid Lewis structure for the given compound is,
Explanation of Solution
The given compound is
Figure 5
The valence electrons are counted as,
The bonds and lone pairs are added in the given arrangement of atoms. The valid Lewis structure is,
Figure 6
The valid Lewis structure for the given compound is shown in Figure 6.

(d)
Interpretation: A valid Lewis structure for the given compound is to be drawn.
Concept introduction: The arrangement of valence electrons among the atoms present in a molecule is represented by the Lewis structure of that molecule. The electron pairs in the molecule are considered to be delocalized.
Answer to Problem 1.43P
The valid Lewis structure for the given compound is,
Explanation of Solution
The given compound is
Figure 7
The valence electrons are counted as,
The bonds and lone pairs are added in the given arrangement of atoms. The valid Lewis structure is,
Figure 8
The valid Lewis structure for the given compound is shown in Figure 8.

(e)
Interpretation: A valid Lewis structure for the given compound is to be drawn.
Concept introduction: The arrangement of valence electrons among the atoms present in a molecule is represented by the Lewis structure of that molecule. The electron pairs in the molecule are considered to be delocalized.
Answer to Problem 1.43P
The valid Lewis structure for the given compound is,
Explanation of Solution
The given compound is
Figure 9
The valence electrons are counted as,
The bonds and lone pairs are added in the given arrangement of atoms. The valid Lewis structure is,
Figure 10
The valid Lewis structure for the given compound is shown in Figure 10.

(f)
Interpretation: A valid Lewis structure for the given compound is to be drawn.
Concept introduction: The arrangement of valence electrons among the atoms present in a molecule is represented by the Lewis structure of that molecule. The electron pairs in the molecule are considered to be delocalized.
Answer to Problem 1.43P
The valid Lewis structure for the given compound is,
Explanation of Solution
The given compound is
Figure 11
The valence electrons are counted as,
The bonds and lone pairs are added in the given arrangement of atoms. The valid Lewis structure is,
Figure 12
The valid Lewis structure for the given compound is shown in Figure 12.
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