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Worksheets

Exam #3 Review

Total questions: 105

Worksheet time: 3hrs 28mins

Name
Class
Date
1.

Which of the following will form a cation?

a)

Aluminum

b)

Sulfur

c)

Iodine

d)

Nitrogen

2.

Which of the following will form a cation?

a)

Barium

b)

Phosphorous

c)

Tellurium

d)

Selenium

3.

What is the definition of a cation?

a)

An atom with no charge

b)

An ion with a negative charge

c)

A molecule with a positive charge

d)

An ion with a positive charge

4.

What is the definition of an anion?

a)

A positively charged ion

b)

A negatively charged ion

c)

A molecule with no charge

d)

A neutral ion

5.

How are cations formed?

a)

By losing electrons

b)

By remaining neutral

c)

By sharing electrons

d)

By gaining electrons

6.

How are anions formed?

a)

By gaining electrons

b)

By not gaining or losing electrons

c)

By sharing electrons

d)

By losing electrons

7.

What is the charge of a common cation, calcium (Ca)?

a)

+2

b)

+1

c)

-2

d)

+3

8.

What is the charge of a common cation, sodium (Na)?

a)

+1

b)

0

c)

+2

d)

-1

9.

An atom that loses electrons has a ____ charge.

a)

negative

b)

positive

10.

Valence electrons are atoms of the outer most energy level, there is a maximum number of eight.

a)

True

b)

False

11.

Lithium

a)

Li+

b)

Li+2

c)

Li+3

d)

Lt+

12.
An atom becomes _______ when it loses electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
13.
Ionic bonds form between two ions that have...
a)
ionic compounds
b)
negative charges
c)
positive charges
d)
opposite charges
14.
Which is most likely to form a negative ion...
a)

an element from Group 7

b)
a metal
c)
an element from Group 1
d)
an element with atoms that have eight valence electrons
15.
A(n) _____________ is an atom or group of atoms that has an electric charge. 
a)
ion
b)
electron
16.

Why do ionic bonds form?

a)

so the number of protons equals the number of electrons

b)

to fill the outermost energy level to make the atom stable

c)

so an atom can become unstable

17.

If an aluminum atom has 13 protons (+) and 10 electrons (-), what is it's charge?

a)

Al+3

b)

Al+13

c)

Al+10

d)

Al-10

18.

if NONMETALS are more likely to GAIN electrons, they will form ...

a)

anions

b)

neutral atoms

c)

cations

19.

What two types of atoms make a covalent bond?

a)

2 non-metals

b)

1 metal and 1 non-metal

c)

2 metals

20.

What type of bond involves the sharing of electrons between atoms?

a)

covalent bond

b)

ionic bond

c)

metallic bond

d)

transfer bond

21.

Identify the following compound as ionic or covalent: SO2

a)

ionic

b)

covalent

22.

Identify the compound if hydrogen and chlorine are chemically combined.

a)

HCl

b)

HCl7

c)

H1Cl1

d)

H1Cl7

23.

Is potassium a cation or an anion?

a)

cation

b)

anion

24.

What will be the charge of this atom after it has been ionized?

a)

-2

b)

-1

c)

+1

d)

+2

25.

Which atom has the LOWEST ionization energy (energy to remove an electron)

a)
b)
c)
26.

What will be the ionic charge of this atom?

a)

-2

b)

-1

c)

+1

d)

+2

27.

What is the ionic charge of this atom?

a)

-2

b)

-1

c)

+1

d)

+2

28.
Force that holds together atoms in a substance.
a)
compound
b)
ion
c)
chemical bond
d)
ionic bond
29.
How many elements make up this compound?
a)
6
b)
4
c)
2
d)
3
30.
What elements generally make an ionic bond?
a)
metal and nonmetal
b)
2 or more nonmetals
c)
metal
d)
none of the above
31.

If Carbon-14 has 6 protons, how many neutrons does it have?

a)

6

b)

7

c)

8

d)

14

32.

Sodium has an atomic number of 11 and an atomic mass of 23. How many electrons does sodium have?

a)

11

b)

12

c)

23

d)

46

33.

When a sodium atom reacts with a chlorine atom to form a sodium chloride compound,

a)

sodium becomes a cation

b)

sodium becomes an anion

c)

sodium and chloride both become an cations

d)

sodium remains a neutral atom

34.

"A pure substance that cannot be broken down into other substances by physical or chemical means" is the definition of a(n)

a)

isotope

b)

element

c)

compound

d)

molecule

35.

Potassium-39 has how many neutrons?

a)

19

b)

18

c)

20

d)

21

36.

Isotopes of an element have a different number of...

a)

Protons

b)

Neutrons

c)

Electrons

d)

Mass

37.
This is a correct dot diagram for oxygen (O)
a)
true
b)
false
38.
What atom matches this electron configuration?
1s2s2p3s2
a)
Neon
b)
Magnesium
c)
Aluminum
d)
Potassium
39.
How many valence electrons are represented here?
a)
7
b)
5
c)
2
d)
8
40.
How many electrons can the d sublevel hold?
a)
8
b)
10
c)
2
d)
4
41.
What atom matches this electron configuration?
[Xe] 6s2 4f14 5d9
a)
Mercury
b)
Gold
c)
Platinum
d)
Thallium
42.
How many electrons can the first energy level hold?
a)
1
b)
2
c)
8
d)
0
43.
Which element is pictured?
a)
neon
b)
fluorine
c)
magnesium
d)
argon
44.
Identify the element in Period 5 that has 1 valence electron?
a)
Rb
b)
Nb
c)
Ag
d)
Sb
45.
What element in Period 4 has 5 valence electrons?
a)
Zr
b)
As
c)
V
d)
Sb
46.
a)

14

b)

4

c)

3

d)

28

47.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
48.
The number of protons and electrons are the same as
a)
Neutrons
b)
Atomic number
c)
atomic mass
d)
Electron shells
49.

Which particle carries no charge?

a)

Neutrons

b)

Electrons

c)

Protons

50.
There are 4 different types of subshells s,p,d,f
a)
true
b)
false
51.
How many electron can be found in a p orbital?
a)
2
b)
3
c)
4
d)
6
52.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
53.
How many electrons can the d sublevel hold?
a)
14
b)
10
c)
2
d)
6
54.

What is the state when electrons move to a higher energy level upon absorption of energy?

a)

active

b)

inactive

c)

excited

d)

ground

55.

What form of energy is emitted when an excited electron returns to the ground state?

a)

Photon (light)

b)

Heat

c)

Kinetic

d)

Potential

56.

What compound gives off bright red color when heated over a flame?

a)

Lithium

b)

Calcium

c)

Strontium

d)

Potassium

57.

What is this?

a)

Atom

b)

Molecule

c)

Compound

58.

What is this?

a)

Atom

b)

Molecule

c)

Compound

59.

What is this?

a)

Atom

b)

Molecule

c)

Molecule AND compound

60.

How would this chemical formula be written?

a)

CH3

b)

CH4

c)

HC4

d)

H4C

61.

A __________ goes up and down on the periodic table.

a)

Group

b)

Period

62.

A _________ goes side to side on the periodic table.

a)

Group

b)

Period

63.

What two elements are in the same Period?

a)

K - Potassium and Na - Sodium

b)

Li - Lithium and Mg - Magnesium

c)

B - Boron and C - Carbon

d)

Zn - Zinc and N - Nitrogen

64.

Which two elements would have similar properties?

a)

Ar - Argon and Xe - Xenon

b)

Og - Oganesson and Lu - Lutetium

c)

He - Helium and Lu - Lutetium

d)

Ar - Argon and Se - Selenium

65.

periods on the periodic table tell you

a)

the number of valence electrons

b)

the number of protons

c)

the number of energy levels

d)

the total number of subatomic particles in the element

66.

The group number tells you the number of

a)

protons

b)

valence electrons

c)

energy levels

67.

What is the name of group number 1?

a)

halogens

b)

noble gases

c)

alkali metals

d)

alkaline earth metals

68.

What is the name of group number 2?

a)

transition metals

b)

halogens

c)

metaloids

d)

alkaline earth metals

69.

What group number are the halogens found?

a)

18 (8A)

b)

1

c)

2

d)

17 (7A)

70.

Which element has properties similar to Calcium (Ca)?

a)

Sodium

b)

Magnesium

c)

Potassium

71.

What are the red elements (those on the left)?

a)

metals

b)

nonmetals

c)

metalloids

72.

What are the blue elements (those on the right)?

a)

metals

b)

nonmetals

c)

metalloids

73.
a)
Metals
b)
Nonmetals
c)
Metalloids
74.
a)
Metals
b)
Nonmetals
c)
Metalloids
75.
a)
Metals
b)
Nonmetals
c)
Metalloids
76.
a)
Metals
b)
Nonmetals
c)
Metalloids
77.
a)
Metals
b)
Nonmetals
c)
Metalloids
78.
a)
Metals
b)
Nonmetals
c)
Metalloids
79.
The small number to the right of an elemental symbol  ( H2) is called?
a)
 a subscript 
b)
a coefficient 
c)
a variable 
d)
a divisor 
80.

How many Hydrogen atoms (H) are in a molecule of H2O?

a)

1

b)

2

c)

3

d)

0

81.

How many atoms of carbon are in a molecule of vinyl chloride (C2H3Cl)?

a)

1

b)

3

c)

6

d)

2

82.
Element or compound?
H2O
a)
element
b)
compound
83.
The red numbers in the image below represent ________
a)
subscripts
b)
coefficients
c)
I don't know, and don't want to try
d)
None of the answers are correct
84.

How do covalent bonds form?

a)

By donating and receiving valence electrons between atoms.

b)

Scientists still aren't sure.

c)

Opposite slight charges attract each atom in the compound.

d)

Sharing valence electrons between atoms

85.

What two types of atoms make a covalent bond?

a)

2 Nonmetals

b)

1 Metal and 1 Nonmetal

c)

2 Metals

d)

2 Noble Gases

86.
For the structural formula shown, what is the chemical formula?
a)
NO
b)
N2O2
c)
NO2
d)
N2O
87.
A Nitrogen molecule (N2) has one triple bond. How many electrons do the nitrogen atoms share?
a)
1
1
b)
3
c)
4
d)
6
88.
How do covalent bonds form?
a)
Donating & receiving valence e- between atoms.
b)
Opposite slight charges attract each other between compounds.
c)
Scientists are still not sure how they form.
d)
Sharing valence e- between atoms.
89.
Which of the following is NOT formed by a covalent bond?
a)
K2S
b)
H2O
c)
I2
d)
CO2
90.
Is hydrogen considered a metal or a non-metal?
a)
A metal
b)
Nonmetal
c)
Metalloid
91.

What type of bond is the strongest?

a)

single

b)

Double

c)

James

d)

triple

92.

What is the Octet Rule?

a)

A guideline stating atoms tend to bond to achieve eight electrons in their outermost energy level for stability.

b)

A principle that states all atoms must have a full outer shell of electrons regardless of the number.

c)

A rule that indicates atoms can only bond with other atoms of the same element.

d)

A theory that suggests atoms will always lose electrons to achieve stability.

93.
Which of the following is the correct Lewis dot structure for the molecule fluorine (F2)?
a)
A
b)
B
c)
C
d)
D
94.

SO₃

a)

sulfate

b)

sulfur oxide

c)

sulfur trioxide

d)

monosulfur trioxide

95.

MgO- name?

a)

oxygen magnesium

b)

magnesium oxide

c)

magnesium oxate

d)

magnesium oxygenate

96.

Label the compound LiBr as either ionic or covalent.

a)

Ionic

b)

Covalent

97.

How many covalent bonds are created in a single ammonia molecule?

a)

0

b)

1

c)

2

d)

3

e)

4

98.

What type of bond will this compound likely form [Na]+ & [Cl]- ?

a)

Ionic compound

b)

Covalent compound

c)

Metallic compound

99.
An attraction between a positive metal ion and surrounding electrons is a(n) ____________bond.
a)
metallic
b)
ionic
100.
Metals are often used to make wire because they are 
a)
malleable
b)
ductile
101.

A metallic bond is a bond between ________.

a)

nonmetals

b)

metals

c)

transition metals

d)

metalloids

102.

Which of the following is NOT a property of metals?

a)

Hard

b)

Can conduct electricity

c)

Very brittle (breaks easily)

d)

Malleable (can bend without breaking)

103.

What is meant by the term "sea of electrons"?

a)

It's what we call all the free floating electrons in a metal.

b)

It's what we call electrons that are floating in a liquid.

c)

It's the total number of electrons in a metal atom.

d)

It's the total number of electrons in the ocean.

104.
What elements generally make an ionic bond?
a)
metal and nonmetal
b)
2 or more nonmetals
c)
metal
d)
none of the above
105.
What elements generally make a covalent bond?
a)
metal and nonmetal
b)
2 or more nonmetals
c)
metal
d)
none of the above