Electrons, Bonds And Molecular Properties Worksheet With Answer Key Page 4
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CHAPTER 1
1.3.
H
H
H
H
OH
H
H
H
H
H
C C C
OH
H
C C C
H
H
C C
O
C
H
or
or
H H
H
H H
H
H H
H
1.4.
H
H
H
H
H
H
OH
H
H
H
H
H
H
C
C C C
OH
H
C
C C C
H
H
C C
O
C
C
H
H
H H
H
H
H H
H
H H
H
H
H
H
OH
H
C
H
H
C
H
H
C
H
H
H
H
H
H
O
H
H
H
H
H
H
C
C C
O
C
H
H
C
C
C
H
H
C
C
C
H
H
C
C
C
H
H
H H
H
H
H
H
H
OH
H
H
H
H
1.5.
C
O
F
a)
b)
c)
d)
H
Br
S
Cl
I
e)
f)
g)
h)
1.6. Both nitrogen and phosphorous belong to column 5A of the periodic table, and
therefore, each of these atoms has five valence electrons. In order to achieve an
octet, we expect each of these elements to form three bonds.
1.7. Aluminum is directly beneath boron on the periodic table (Column 3A), and
therefore both elements exhibit three valence electrons.
C
1.8.
resembles boron because it exhibits three valence electrons.
C
1.9.
resembles nitrogen because it exhibits five valence electrons.
1.10.
H H
H H
H
H
C C H
H
C C H
H
C C
C
H
H
C C H
a)
b)
c)
d)
H H
H H
H H
H
H
H
H
C C
C
H
H
C O H
e)
f)
H H
H
H
H
B
H
1.11
The central boron atom lacks an octet of electrons.
H
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