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1st semester chemistry REVIEW

Total questions: 145

Worksheet time: 3hrs 17mins

Name
Class
Date
1.

Which element in Period 2 has the greatest atomic radius?

a)

Be

b)

C

c)

Na

d)

Li

2.

Which of the group 13 elements is the largest?

a)

B

b)

Ti

c)

Fr

d)

Ga

3.

Of the halogens, which has the smallest radius?

a)

F

b)

Br

c)

He

d)

At

4.

Which of the metalloids has the smallest atomic radius?

a)

Si

b)

B

c)

Sb

d)

Al

5.

Of the halogens, which has the smallest electronegativity?

a)

F

b)

Cl

c)

At

d)

Ne

6.

Which of the alkaline-earth metals has the smallest electronegativity

a)

Be

b)

Sc

c)

Ra

d)

Sr

7.

Which alkali metal is the least reactive?

a)

Li

b)

Na

c)

H

d)

Fr

8.

Which of the period 2 elements has the largest electronegativity?

a)

Ar

b)

Cl

c)

Na

d)

F

9.

Which of the transition metals in the 5th period is the largest?

a)

Y

b)

Mo

c)

Rb

d)

Xe

10.

Which element in the Lanthanide Series has the largest atomic radius?

a)

Th

b)

Ce

c)

Gd

d)

Lu

11.
Which of the following will have a larger radius than Zinc?
a)
Gallium
b)
Aluminum
c)
Magnesium
d)
Strontium
12.
Which of the following will have a higher electronegativity than arsenic (As)?
a)
Carbon (C)
b)
Neon (Ne)
c)
Antimony (Sb)
d)
Germanium (Ge)
13.
Electronegativity is...
a)
the ability of an atom to attract/ accept electrons
b)
the ability of an atom to lose electrons
c)
the energy required to remove an electron from a specific atom
d)
how easy it is to make friends. 
14.
The atom with the largest atomic radius in Group 18 is - 
a)
Ar
b)
He
c)
Kr
d)
Rn
15.

Which does NOT describe a metal

a)

has a large atomic radius

b)

conducts electricity

c)

has negative charges

d)

has a low electronegativity

16.
Vertical columns of elements (families) on the periodic table with similar  properties
a)
groups
b)
periods
c)
quadrants
d)
rows
17.

Choose the largest element out of the following:

a)

Cs

b)

Ag

c)

Cl

d)

Ne

18.

Name the element of the following that is the most reactive

a)

Li

b)

Na

c)

Rb

d)

Cs

19.

Name the element of the following that is the most reactive

a)

F

b)

Cl

c)

Br

d)

I

20.

Name the element of the following that is a semiconductor

a)

Ni

b)

Si

c)

Cl

d)

He

21.

Name the element of the following that is a halogen

a)

Be

b)

B

c)

Br

d)

Kr

22.

Aluminum's charge is

a)

+1

b)

+2

c)

+3

d)

-3

23.

The element at period 4, group 3 is

a)

Zr

b)

C

c)

Mg

d)

Sc

24.

Which is a nonmetal

a)

Fe

b)

U

c)

V

d)

O

25.

Which is biggest

a)

Fe

b)

Fe +1

c)

Fe +2

d)

Fe +3

26.

Which block is Uranium in?

a)

S

b)

P

c)

D

d)

F

27.

Which set of elements would work best in a battery:

a)

Cu and Al

b)

N and O

c)

Sn and Pb

d)

Si and Cl

28.

Which element explodes in water

a)

Ni

b)

O

c)

Na

d)

N

29.

Which element makes a cation

a)

Li

b)

N

c)

O

d)

F

30.

Which element makes an anion

a)

Na

b)

Mg

c)

Al

d)

P

31.

How many valence electrons does Mg have

a)

1

b)

2

c)

3

d)

4

32.

Which metal is the most stable?

a)

Au

b)

Li

c)

B

d)

Fr

33.

Name the alkaline earth metal with an isotope of 20 neutrons

a)

Be

b)

Mg

c)

Ca

d)

Na

e)

K

34.

Which element has a full shell of electrons

a)

Li

b)

Al

c)

S

d)

Ar

35.

Which is the smallest atom?

a)

Fr

b)

Au

c)

P

d)

O

36.
Which section of the spectrum is the ONLY one we can see?
a)
X-rays
b)
Visible Light
c)
Gamma Rays
d)
Ultraviolet Rays
37.
Which of the following electromagnetic waves has the lowest energy?
a)
gamma ray
b)
infrared wave
c)
visible light wave
d)
microwave
38.
What is the name of this element?
a)
Helium
b)
Hydrogen
c)
Argon
d)
Silver
39.
What is the name of this element?
a)
Lithium
b)
Boron
c)
Carbon
d)
Neon
40.
What is the mass number of this atom?
a)
1
b)
3
c)
4
d)
7
41.
What is the atomic number of this atom?
a)
2
b)
4
c)
6
d)
none of the above
42.
How many valence electrons?
a)
2
b)
3
c)
5
d)
10
43.
What's a valence electron?
a)
electrons in the second energy level
b)
electrons in the outermost energy level
c)
the atomic number
d)
electrons in the first level
44.

The innermost energy level (1st ring of the Bohr model) has a maximum of how many electrons?

a)

1

b)

2

c)

6

d)

8

45.

What is this element?

a)

Beryllium (atomic #4)

b)

Boron (atomic #5)

c)

Carbon (atomic #6)

d)

Nitrogen (atomic #7)

46.

How many valence electrons?

a)

2

b)

3

c)

4

d)

5

47.

How many valence electrons?

a)

2

b)

4

c)

6

d)

8

48.

Which Bohr model represents Neon?

a)
b)
c)
d)
49.

What frequency do most appliances use

a)

valence electrons

b)

107.7 FM

c)

radio waves

d)

60 Hz

50.

Which element has 5 valence electrons

a)

C

b)

N

c)

Na

d)

O

51.

Elements that have a full ring of electrons on the outside are called

a)

isotopes

b)

valence

c)

noble gases

52.

The electron configuration 1s22s22p63s23p3 is for the element

a)

Sulfur

b)

Silicon

c)

Phosphorous

d)

Chlorine

53.

The electron configuration 1s22s22p63s1 if for the element

a)

Magnesium

b)

Sodium

c)

Neon

d)

Aluminum

54.

Which block of the periodic table does Carbon belong in

a)

S

b)

P

c)

D

d)

F

55.
What are the states of matter?
a)
solid, liquid, and juice
b)
solid and liquid
c)
solid and gas
d)
solid, liquid, and gas
56.

Which has a greater distance between particles?

a)

Solid

b)

Liquid

c)

gas

57.
In the above diagram, "State of Matter B" is a liquid. This means that it has:
a)
definite shape and volume.
b)
no definite shape or volume.
c)
definite volume, but changing shape.
d)
definite shape, but changing volume.
58.

O, N, Au, and H are examples of

a)

Element

b)

Mixture

c)

Compound

d)

Homogeneous

e)

Heterogeneous

59.

Two or more elements combined in a fixed ratio.

a)

Mixture

b)

Element

c)

Compound

d)

homogenous mixture

60.

A variety of elements and compounds that ARE NOT chemically combined.

a)

Water

b)

Mixture

c)

Elements

d)

Compounds

61.

Which of these is a mixture?

a)

Kool-Aid solution

b)

Carbon dioxide (CO2)

c)

Gold

d)

A molecule of oxygen

62.
A mixture that appears to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
63.
A mixture that may have different sized particles and does NOT appear to be evenly mixed throughout:
a)
an atom
b)
a compound
c)
a homogeneous mixture
d)
a heterogeneous mixture
64.

Which of the following is endothermic

a)

freeze

b)

condense

c)

evaporate

d)

deposition

65.

Going from solid to gas is called ________ and is an example of a __________ change

a)

evaporation , chemical

b)

condensation, physical

c)

sublimation, physical

d)

melting, chemical

66.

Going from solid to gas is called ________ and is an example of a __________ change

a)

evaporation , chemical

b)

condensation, physical

c)

sublimation, physical

d)

melting, chemical

67.

Two or more elements that combine chemically form a(n) _____________.

a)

mixture

b)

compound

c)

physical change

68.

A combination of substances that are not chemically combined is called a(n)____________.

a)

mixture

b)

compound

c)

physical

d)

element

69.

It is a pure substance containing two or more different kinds of atoms combined in a fixed ratio.

a)

element

b)

mixture

c)

compound

70.

These are found on the Periodic Table.

a)

elements

b)

mixtures

c)

compounds

71.

Examples are water (H2O) and carbon dioxide (CO2).

a)

elements

b)

mixtures

c)

compounds

72.

Which of the following is a chemical change:

a)

melting

b)

breaking

c)

freezing

d)

rusting

73.

Which of the following is a chemical change made to paper

a)

folding

b)

burning

c)

writing on it

d)

getting it wet

74.

What is water - H2O?

a)

element

b)

compound

c)

mixture

75.

What is salad?

a)

element

b)

compound

c)

heterogeneous mixture

d)

homogeneous mixture

76.

Which rule best explains why you shouldn't pump bicycle tires to the absolute max on a hot summer day?

a)

Matter is made up of tiny particles

b)

Pure substances are composed of identical particles

c)

Particles at higher temperatures move faster

d)

Particles are attracted to one another

77.

Matter is anything that has

a)

temperature and volume

b)

mass and volume

c)

mass and weight

d)

volume and length

78.

2 examples of pure substances are

a)

homogeneous mixtures and elements

b)

homogeneous mixtures and heterogeneous mixtures

c)

compounds and solutions

d)

elements and compounds

79.

Which of the following is the opposite of evaporation:

a)

melting

b)

sublimation

c)

freezing

d)

condensation

80.

Which of the following is exothermic

a)

freezing

b)

melting

c)

evaporating

d)

subliming

81.

What is the symbol of the element Iron?

a)

F

b)

Fe

c)

Fm

d)

Fr

82.

If an element has 12 protons, 13 neutrons, and 15 electrons, what is its mass?

a)

2

b)

3

c)

27

d)

25

83.

What is the charge of an element with 26 protons and 23 electrons?

a)

+3

b)

+2

c)

-3

d)

0

84.

Whis is NOT a force that holds an atom together?

a)

a special atomic adhesive

b)

gravity- the nucleus has a large mass and attracts the electrons

c)

charge- the positive protons in the nucleus attract the negative electrons.

85.

Name the element with 16 protons, 14 neutrons, and 18 electrons?

a)

Silicon

b)

Nitrogen

c)

Argon

d)

Sulfur

86.

What element normally has 30 electrons?

a)

Zn

b)

Mn

c)

Sn

d)

Ne

87.

Which element usually has 7 neutrons?

a)

C

b)

N

c)

O

d)

F

88.

One mole of Si weighs

a)

14 grams

b)

42 grams

c)

28 grams

d)

6 x 10^23 grams

89.

How much does 2 moles of Be weigh?

a)

5 grams

b)

10 grams

c)

18 grams

d)

8 grams

90.

If I have 24 grams of C, how many moles of C do I have?

a)

1 mole

b)

4 moles

c)

2 moles

d)

144 moles

91.

How much does 1 mole of CO2 weigh?

a)

22 grams

b)

3 grams

c)

44 grams

d)

36 grams

92.

Which is an unlikely isotope of Al?

a)

Al-25

b)

Al-26

c)

Al-27

d)

Al-72

93.

Protons

a)

have a negative charge and are outside the nucleus

b)

have a neutral charge

c)

have a negative charge and are outside the nucleus

d)

have a positive charge and are in the nucleus

94.

Electrons

a)

have a negative charge and weigh a lot

b)

have a negative charge and weigh very little

c)

have a neutral charge

d)

have a positive charge

95.

Neutrons have a __ charge and are located in the__.

a)

0 charge, nucleus

b)

- charge, outside nucleus

c)

0 charge, outside nucleus

d)

+ charge, nucleus

96.

Why do the isotopes of carbon shown above have different masses?

a)

They all have a different number of protons.

b)

They all have the same number of protons but different number of neutrons.

c)

They all have the same number of protons but different number of electrons

d)

They all have the same number of protons, neutrons, and electrons.

97.

Compared to the entire atom, the nucleus of the atom is

a)

smaller and contains most of the mass.

b)

smaller and contains little of the mass.

c)

larger and contains most of the mass.

d)

larger and contains little of the mass.

98.

An element's identity is based on its

a)

atomic mass.

b)

mass number.

c)

atomic number/number of protons

d)

number of neutrons

99.

An ion is forms when:

a)

an atom gains a proton.

b)

an atom gains a neutron.

c)

an atom loses a neutron.

d)

an atom gains OR loses electrons.

100.

A positively charged ion is called a(n)

a)

anion

b)

posion

c)

isotope

d)

cation

101.

An isotope is formed when

a)

an atom gains a proton.

b)

an atom gains OR loses neutrons.

c)

an atom loses an electron.

d)

an atom gains an electron.

102.

What is the atomic number of the atom above?

a)

6

b)

12

c)

18

d)

0

103.

What is the mass number of the atom above?

a)

6

b)

12

c)

18

d)

0

104.

What is the number of protons the atom above?

a)

6

b)

12

c)

18

d)

0

105.

What is the number of electrons the atom above?

a)

6

b)

12

c)

18

d)

0

106.

If the number of electrons in the atom changed, what would be the effect?

a)

The atomic number would change.

b)

The mass number would change.

c)

The charge of the atom would change.

d)

Nothing would change.

107.

If the number of neutrons in the atom changed, what would be the effect?

a)

The atomic number would change.

b)

The mass number would change.

c)

The charge of the atom would change.

d)

Nothing would change.

108.

If the number of protons in the atom changed, what would be the effect?

a)

The element would change.

b)

It is called an isotope

c)

The charge of the atom would change.

d)

Nothing would change.

109.

What is the charge of an element that has 5 protons and 6 electrons?

a)

+1

b)

-1

c)

0

d)

11

110.

An element that has 14 electrons, 14 neutrons, and 14 protons has a charge of

a)

14

b)

28

c)

0

d)

+1

111.

The number mole is

a)

12

b)

6.022 x 10^23

c)

1

d)

6

112.

The element fluorine

a)

has the symbol Fe

b)

has 19 electrons

c)

has 10 protons

d)

has 9 electrons

113.

The element phosphorous

a)

has the symbol Pb

b)

has a mass of 31 grams

c)

has 16 protons

d)

has 16 electrons

114.

The element argon

a)

has the symbol Ag

b)

has a mass of 39 grams

c)

has 18 protons

d)

has 22 electrons

115.

The element Na

a)

is nitrogen

b)

has 12 neutrons

c)

has 23 electrons

d)

has 13 protons

116.

This variable is the one thing that changed on purpose...

a)

Dependent Variable

b)

Control

c)

Independent Variable

117.

The variable that is being tested, counted, or measured and how it reacts to the independent variable is known as:

a)

Independent Variable

b)

Controlled Variable

c)

Dependent Variable

118.
The things that are kept the same to ensure the results are due to the experiment is called..
a)
Control
b)
Constant
c)
Independent Variable
d)
Dependent Variable
119.

What is the DEPENDENT variable (effect) in this experiment?


"Does eating breakfast improve test scores?"

a)

eating breakfast or not

b)

the grade you got on the test

c)

what time you get up in the morning

d)

how tasty the breakfast is

120.

You are testing how the amount you water a plant affects its growth. What would be the INDEPENDENT VARIABLE in this experiment.

a)

They type of pot you put the plants in.

b)

The amount you water each plant.

c)

The amount of sunlight the plants get.

d)

The amount the plant grows.

121.

A scientist is testing which flavor of ice cream melts the fastest. What would his controlled variables be? (choose ALL that apply)

a)

The flavor of ice cream

b)

the kind of cone the ice creams are in

c)

the place in the room where the ice cream is

d)

the size of the scoop

e)

the time it takes to melt

122.

Sadie is testing how the age of a seed affects how fast plants grow. Look at the picture to see if you can figure out what makes her experiment unfair. Mark all that apply.

a)

She used different types of seeds/plants.

b)

The plants are in different kinds of pots.

c)

She did not plant very many plants.

d)

Seed age might not make a difference.

123.

Which variable always goes on the y-axis (vertical)?

a)

Independent

b)

Dependent

c)

Constant

d)

Control

124.

Which variable always goes on the x-axis (horizontal)?

a)

Independent

b)

Dependent

c)

Constant

d)

Control

125.

What type of graph is best used to represent trends in data?

a)

Line

b)

Circle

c)

Bar

d)

Pictograph

126.

What is the independent variable on this graph?

a)

Year

b)

Number of Visitors

c)

Visitors to a Park

d)

none of these

127.

What is the dependent variable on this graph?

a)

Year

b)

Number of Visitors

c)

none of these

128.
What is the relationship between the independent variable and the dependent variable?
a)
As time increase, distance decreases
b)
As time increases, distance increases
c)
As time decreases, distance decreases
d)
As time decreases, distance increases
129.
Why is this graph misleading?
a)
it only lists 5 players
b)
It goes in intervals of 50
c)
The axis doesn't start at zero and makes it look like a big difference in wins.
d)
Not misleading
130.
Explain why this graph may be misleading?
a)
the x-axis does not have equal intervals
b)
San Fransisco is not a real city
c)
you cannot have percents in a line graph
d)
the y-axis does not have equal intervals
131.
What pressure will produce a volume of 30 mL? 
a)
9.5 atm
b)
19.5 atm
c)
 30 atm
d)
 40 atm
132.
The students measured length during a science experiement, they got 12 cm. But the actual measurement was 14.25 cm. What was the percent error?
a)
15.79%
b)
18.75%
c)
2.25%
d)
18%
133.
The deer population is estimated to be 17,600 in northern Illinois, but an actual count was 21,300. What is the percent error?
a)
21%
b)
17.37%
c)
17.4%
d)
21.02%
134.
Jessie estimates the weight of her cat to be 8 pounds.  The actual weight of the cat was 10 pounds.  Find the percent error.  
a)
15%
b)
20%
c)
25%
d)
30%
135.

How close a measurement is to the accepted value is called..

a)

Accuracy

b)

Precision

c)

Significant

d)

Estimate

136.
When a measurement is repeatable and consistent it is said to have...
a)
High precision
b)
Low precision
c)
High accuracy
d)
Low accuracy
137.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
138.
?
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
139.
"San Francisco experiences summer during the months of June to September."  This is an example of a ________.   
a)
Claim
b)
Evidence 
c)
Reasoning
d)
All
140.
"In June-September, San Francisco has an average temperature of 18 C and an average precipitation of 0". 
This is an example of a ________.   
a)
Claim
b)
Evidence 
c)
Reasoning
d)
All
141.
"June-September are the summer months in San Francisco because the temperatures are higher and precipitation is lower."
This is an example of a ________.   
a)
Claim
b)
Evidence 
c)
Reasoning
d)
All
142.

Find the average of these numbers:

3 17 21 14 8

a)

63

b)

12.6

c)

13

d)

47

143.

.00056 in scientific notation is written as

a)

56

b)

5.6e+4

c)

5.6e-3

d)

5.6e-4

144.

7.2e-5 is written as

a)

.000072

b)

725000

c)

.00072

d)

.0000072

145.

Calculate: 4.3e-2 x 8.5e+4 =

a)

4000

b)

3700

c)

19764

d)

3655

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