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Chapter 8 - Chemical Bonds

 

 1) 

Which of the following atoms does NOT have a full set of electrons unless it is bonded?
a)
hydrogen
c)
neon
b)
helium
d)
argon
 

 2) 

Gold can be pounded out to make a foil only a few atoms thick because of
a)
covalent bonds.
c)
ionic bonds.
b)
metallic bonds.
d)
valence bonds.
 

 3) 

In which area of the periodic table do you find elements whose atoms easily gain electrons?
a)
across the top two rows
c)
on the right side
b)
across the bottom row
d)
on the left side
 

 4) 

The number of ____ is most important in determining how an atom will bond.
a)
protons
c)
electrons in the innermost energy level
b)
neutrons
d)
electrons in the outermost energy level
 

 5) 

Which type of element is most likely to gain electrons when it forms bonds?
a)
metal
c)
nonmetal
b)
metalloid
d)
noble gas
 

 6) 

Why do atoms have no charge?
a)
The number of protons is equal to the number of neutrons.
b)
The number of electrons is equal to the number of neutrons.
c)
The number of protons is equal to the number of electrons.
d)
There is an equal number of neutrons, protons, and electrons.
 

 7) 

____ are formed by atoms losing electrons.
a)
Negative ions
c)
Elements
b)
Positive ions
d)
Compounds
 

 8) 

The second energy level can hold up to ____ electrons.
a)
2
c)
6
b)
4
d)
8
 

 9) 

Oxygen is in Group 16. How many valence electrons does oxygen have?
a)
2
c)
8
b)
6
d)
16
 

 10) 

Sodium is in Group 1. How many valence electrons does sodium have?
a)
1
c)
8
b)
2
d)
11
 

 11) 

Chlorine is in Group 17. How many valence electrons does chlorine have?
a)
5
c)
17
b)
7
d)
35
 

 12) 

Atoms of ____ do not normally form chemical bonds.
a)
noble gases
c)
elements in Group 18
b)
halogens
d)
Both (a) and (c)
 

 13) 

The force of attraction between oppositely charged ions is a(n) ____ bond.
a)
atomic
c)
covalent
b)
ionic
d)
metallic
 

 14) 

A transfer of electrons between atoms changes the number of electrons in each atom, while the number of protons
a)
decreases.
c)
increases.
b)
stays the same.
d)
None of the above
 

 15) 

Atoms that _____ form positive ions.
a)
lose electrons
c)
gain electrons
b)
lose protons
d)
gain protons
 

 16) 

When a chlorine atom becomes Cl, it ____ in the third energy level.
a)
loses one electron
c)
loses one proton
b)
gains one electron
d)
gains one proton
 

 17) 

Which of the following is the correct electron-dot diagram for a water molecule?
a)
mc017-1.jpg
c)
mc017-3.jpg
b)
mc017-2.jpg
d)
mc017-4.jpg
 

 18) 

Which of the following is the correct electron-dot diagram for a diatomic molecule of hydrogen?
a)
mc018-1.jpg
c)
mc018-3.jpg
b)
mc018-2.jpg
d)
mc018-4.jpg
 

 19) 

Metal ions in a metal are held together because metallic bonds
a)
are parallel to one another.
b)
are perpendicular to one another.
c)
exist between oppositely charged ions.
d)
extend throughout the metal in all directions.
 

 20) 

Ionic compounds break when hit with a hammer because
a)
the outermost energy levels of the ions overlap.
b)
the electrons move into new positions.
c)
the shared electrons cannot move.
d)
neither the positive ions nor the negative ions are free to move.
 

 21) 

Diatomic molecules consist of two atoms joined by a(n) ____ bond.
a)
atomic
c)
covalent
b)
ionic
d)
metallic
 

 22) 

What is the charge of an ion that contains 16 protons and 18 electrons?
a)
2–
c)
1+
b)
1–
d)
2+
 

 23) 

Which of the following would most likely be a brittle solid at room temperature?
a)
ionic compound
c)
metallic compound
b)
covalent compound
d)
nonmetallic compound
 

 24) 

Which of the following usually break apart when hit with a hammer?
a)
ionic compound
c)
metal
b)
covalent compound
d)
none of the above
 

 25) 

What type of bonds are present in table sugar, C12H22O11?
a)
nonmetallic bonds
c)
covalent bonds
b)
metallic bonds
d)
ionic bonds
 
 
Use the periodic table below to answer the questions that follow.

The Periodic Table of the Elements
 
1
                
18
1
1
H
Hydrogen
1.0
2
          
13
14
15
16
17
2
He
Helium
4.0
2

3
Li
Lithium
6.9
4
Be
Beryllium
9.0
          
5
B
Boron
10.8
6
C
Carbon
12.0
7
N
Nitrogen
14.0
8
O
Oxygen
16.0
9
F
Fluorine
19.0
10
Ne
Neon
20.2
3

11
Na
Sodium
23.0
12
Mg
Magnesium
24.3
3
4
5
6
7
8
9
10
11
12
13
Al
Aluminum
27.0
14
Si
Silicon
28.1
15
P
Phosphorus
31.0
16
S
Sulfur
32.1
17
Cl
Chlorine
35.5
18
Ar
Argon
39.9
4

19
K
Potassium
39.1
20
Ca
Calcium
40.1
21
Sc
Scandium
45.0
22
Ti
Titanium
47.9
23
V
Vanadium
50.9
24
Cr
Chromium
52.0
25
Mn
Manganese
54.9
26
Fe
Iron
55.8
27
Co
Cobalt
58.9
28
Ni
Nickel
58.7
29
Cu
Copper
63.5
30
Zn
Zinc
65.4
31
Ga
Gallium
69.7
32
Ge
Germanium
72.6
33
As
Arsenic
74.9
34
Se
Selenium
79.0
35
Br
Bromine
79.9
36
Kr
Krypton
83.8
5

37
Rb
Rubidium
85.5
38
Sr
Strontium
87.6
39
Y
Yttrium
88.9
40
Zr
Zirconium
91.2
41
Nb
Niobium
92.9
42
Mo
Molybdenum

95.9
43
Tc
Technetium
(97.9)
44
Ru
Ruthenium
101.1
45
Rh
Rhodium
102.9
46
Pd
Palladium
106.4
47
Ag
Silver
107.9
48
Cd
Cadmium
112.4
49
In
Indium
114.8
50
Sn
Tin
118.7
51
Sb
Antimony
121.8
52
Te
Tellurium
127.6
53
I
Iodine
126.9
54
Xe
Xenon
131.3
6

55
Cs
Cesium
132.9
56
Ba
Barium
137.3
57
La
Lanthanum
138.9
72
Hf
Hafnium
178.5
73
Ta
Tantalum
180.9
74
W
Tungsten
183.8
75
Re
Rhenium
186.2
76
Os
Osmium
190.2
77
Ir
Iridium
192.2
78
Pt
Platinum
195.1
79
Au
Gold
197.0
80
Hg
Mercury
200.6
81
Tl
Thallium
204.4
82
Pb
Lead
207.2
83
Bi
Bismuth
209.0
84
Po
Polonium
(209.0)
85
At
Astatine
(210.0)
86
Rn
Radon
(222.0)
7

87
Fr
Francium
(223.0)
88
Ra
Radium
(226.0)
89
Ac
Actinium
(227.0)
104
Rf
Rutherfordium

(261.1)
105
Db
Dubnium
(262.1)
106
Sg
Seaborgium

(263.1)
107
Bh
Bohrium
(262.1)
108
Hs
Hassium
(265)
109
Mt
Meitnerium
(266)
110
Uun
Ununnilium
(271)
111
Uuu
Unununium
(272)
112
Uub
Ununbium
(277)
 
114
Uuq
Ununquadium

(285)
 
116
Uuh
Ununhexium

(289)
 
118
Uuo
Ununoctium
(293)
   
nar001-1.jpg
              
   
58
Ce
Cerium
140.1
59
Pr
Praseodymium

140.9
60
Nd
Neodymium
144.2
61
Pm
Promethium

(144.9)
62
Sm
Samarium
150.4
63
Eu
Europium
152.0
64
Gd
Gadolinium
157.3
65
Tb
Terbium
158.9
66
Dy
Dysprosium
162.5
67
Ho
Holmium
164.9
68
Er
Erbium
167.3
69
Tm
Thulium
168.9
70
Yb
Ytterbium
173.0
71
Lu
Lutetium
175.0
   

90
Th
Thorium
232.0
91
Pa
Protactinium
231.0
92
U
Uranium
238.0
93
Np
Neptunium
(237.0)
94
Pu
Plutonium
244.1
95
Am
Americium
(243.1)
96
Cm
Curium
(247.1)
97
Bk
Berkelium
(247.1)
98
Cf
Californium
(251.1)
99
Es
Einsteinium
(252.1)
100
Fm
Fermium
(257.1)
101
Md
Mendelevium

(258.1)
102
No
Nobelium
(259.1)
103
Lr
Lawrencium

(262.1)
 

 26) 

Which of the following is the correct electron-dot diagram of a chlorine atom?
a)
mc026-1.jpg
c)
mc026-3.jpg
b)
mc026-2.jpg
d)
mc026-4.jpg
 

 27) 

Which of the following is the correct electron-dot diagram of an oxygen atom?
a)
mc027-1.jpg
c)
mc027-3.jpg
b)
mc027-2.jpg
d)
mc027-4.jpg
 

 28) 

Which of the following compounds has a high melting point and boiling point?
a)
metallic compound
c)
covalent compound
b)
ionic compound
d)
valence compound
 

 29) 

The element calcium (Ca) is in Group 2. How many valence electrons does each of its atoms have?
a)
1
c)
6
b)
2
d)
7
 

 30) 

The element potassium (K) is in Group 1. How many valence electrons does each of its atoms have?
a)
1
c)
6
b)
2
d)
7
 

 31) 

The element chlorine (Cl) is in Group 17. How many valence electrons does each of its atoms have?
a)
1
c)
7
b)
2
d)
17
 



 
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