Covalent Bonding Chemistry Worksheet With Answers Page 5
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1
2
3
4
5
6CHAPTER
8
CHAPTER
Assessment
8
continued
Assessment
continued
Cumulative Review
83.
Name three indicators of chemical change.
96.
Identify the larger atom of each pair. (Chapter 6)
(Chapter 2)
calcium and barium
a.
silicon and sulfur
b.
84.
Make the following conversions. (Chapter 3)
sodium and nitrogen
c.
66.5 mm to micrometers
a.
83. formation of a gas, a change in
2
4
10
g to centigrams
Which of these statements about the periodic
b.
97.
color or odor
5.62 mg/mL to decigrams per liter
table is correct? (Chapter 6)
c.
84. a. 6.65 ×10
4
85 km/h to meters per second
I. Elements are arranged in order of increasing
micrometers
d.
atomic mass.
b. 4 centigrams
How many significant figures are in each mea-
85.
−1
II. A period is a horizontal row.
c. 5.62 × 10
surement? (Chapter 3)
decigram per liter
III. Nonmetals are located on the right side of
4
0.00052 m
9.8
10
g
a.
b.
d. 2.4 × 10
1
meters per second
the table.
5.050 mg
8.700 mL
c.
d.
85. a. 2
I only
a.
How many neutrons are in each atom?
86.
b. 2
I and II only
b.
(Chapter 4)
c.
I, II, and III
c. 4
silicon-30
magnesium-24
a.
b.
d.
I and III only
nitrogen-15
chromium-50
c.
d.
d. 4
e.
II and III only
How do isotopes of an atom differ? (Chapter 4)
86. a. 16
87.
Which of the following ions has the same num-
98.
In a neutral atom, the number of which two
b. 12
88.
ber of electrons as a noble gas? (Chapter 7)
subatomic particles must always be equal?
c. 8
3
2
3
Al
O
Br
N
a.
b.
c.
d.
(Chapter 4)
d. 26
What element is likely to form an ionic com-
99.
How many electrons are in the 2p sublevel of an
89.
pound with chlorine? (Chapter 7)
87. Isotopes have the same number of
atom of each element? (Chapter 5)
iodine
a.
protons and electrons, but differ-
a.
aluminum
b.
carbon
cesium
b.
ent numbers of neutrons.
c.
fluorine
d.
lithium
c.
helium
88. Protons and electrons must be
90.
What happens to the wavelength of light as the
How many valence electrons does each atom
100.
frequency increases? (Chapter 5)
equal.
have? (Chapter 7)
5
91.
What does the 5 in 3d
represent? (Chapter 5)
89. a. 6
a.
argon
b.
aluminum
Write correct electron configurations for atoms
b. 2
92.
selenium
c.
of the following elements. (Chapter 5)
c. 5
beryllium
d.
a.
sodium
b.
sulfur
d. 0
c.
phosphorus
d.
nitrogen
Write the electron configuration of each ion.
101.
90. The wavelength decreases as the
(Chapter 7)
93.
How does the ionic radius of a typical anion
frequency increases.
a.
oxide ion
compare with the radius for the corresponding
b.
magnesium ion
91. The d orbitals related to the third
neutral atom? (Chapter 6)
c.
nitride ion
principal energy level contain 5
94.
What criteria did Mendeleev and Moseley use to
potassium ion
d.
arrange the elements on the periodic table?
electrons.
An alloy is composed of two or more elements.
102.
(Chapter 6)
2
2
6
1
92. a. 1s
2s
2p
3s
Is an alloy a compound? Explain your answer.
2
2
6
2
4
Give the electron configuration of the element
95.
b. 1s
2s
2p
3s
3p
(Chapter 7)
found at each location in the periodic table.
2
2
6
2
3
c. 1 s
2s
2p
3s
3p
(Chapter 6)
2
2
3
d. 1s
2s
2p
Group 1A, period 4
Group 3A, period 3
a.
b.
93. The anion is larger than the corre-
Group 6A, period 3
Group 2A, period 6
c.
d.
sponding neutral atom.
94. Mendeleev arranged the elements
by increasing atomic mass in verti-
250 Chapter 8
cal rows and by similarities in
chemical and physical properties.
Mosely arranged the elements by
2
2
6
97. e. II and III only
101. a. 1s
2s
2p
increasing atomic number in verti-
2
2
6
cal rows and by similarities in
98. All have the same number of electrons as
b. 1s
2s
2p
2
2
6
chemical and physical properties.
a noble gas.
c. 1s
2s
2p
2
2
6
2
6
1
2
2
6
2
6
99. b. cesium
d. 1s
2s
2p
3s
3p
95. a. K, 1s
2s
2p
3s
3p
4s
2
2
6
2
1
b. Al, 1s
2s
2p
3s
3p
100. a. 8
102. No, an alloy is a homogeneous mixture.
2
2
6
2
4
c. S, 1s
2s
2p
3s
3p
b. 3
2
2
6
2
6
10
2
d. Ba, 1s
2s
2p
3s
3p
3d
4s
c. 6
6
10
2
6
2
4p
4d
5s
5p
6s
d. 2
96. a. barium
b. silicon
c. sodium
250 Chapter 8
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