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Fall Final Chemistry Review

Total questions: 260

Worksheet time: 10hrs 16mins

Name
Class
Date
1.
These kind of observation use your senses to observe results.
a)
Qualitative
b)
Quantitative
c)
Scientific
2.
These kind of observations are made using instruments such as rulers, balances and thermometers.
a)
Qualitative
b)
Quantitative
c)
Scientific
3.
It feels smooth.
a)
Qualitative 
b)
Quantitative
4.
It tastes sweet.
a)
Qualitative
b)
Quantitative
5.
It makes a loud crackling sound.
a)
Qualitative
b)
Quantitative
6.
The temperature of the room is decreasing by 4 degrees Celsius.
a)
Qualitative
b)
Quantitative
7.
The mass of the chocolate cake is 250 g.
a)
Qualitative
b)
Quantitative
8.
The flower has 6 petals.
a)
Qualitative
b)
Quantitative
9.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
10.
?
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
11.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
12.

Measurements: 2.5, 14.5, 10.1, 45.3

True Value: 25.0

These measurements are…

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

13.

Measurements: 24.9, 25.2, 25.1, 24.8

True Value: 25.0

These measurements are…

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

14.

What is the SI unit for mass?

a)

kg

b)

mol

c)

g

d)

kelvin

15.

What is the SI unit for length?

a)

meter

b)

kg

c)

kelvin

d)

mol

16.

What is the SI unit for temperature?

a)

kelvin

b)

celsius

c)

fahrenheit

d)

joule

17.

How close a series of measurements are to each other is known as

a)

accuracy

b)

precision

c)

error

d)

significant figures

18.

How many significant figures are in the measurement 0.00130 cm?

a)

5

b)

2

c)

3

d)

4

19.

How many significant figures are in the measurement 2.40 x 10-5 cm?

a)

5

b)

2

c)

3

d)

4

20.

How many significant figures are in the measurement 2200 cm?

a)

5

b)

2

c)

3

d)

4

21.

How many significant figures are in the measurement 90.00 cm?

a)

5

b)

2

c)

3

d)

4

22.

Written in scientific notation, the measurement 0.000 065 cm is...

a)

6.5 x 105 cm

b)

6.5 x 104 cm

c)

6.5 x 10-5 cm

d)

6.5 x 10-4 cm

23.

Written in scientific notation, the measurement 78 000 cm is...

a)

7.8 x 104 cm

b)

7.8 x 105 cm

c)

7.8 x 10-4 cm

d)

7.8 x 10-5 cm

24.

If a student determines the mass of a weight to be 45.0 g, and the weight is stamped "50.00 g", the student's percent error is...

a)

10.0%

b)

-10.0%

c)

11.1%

d)

-11.1%

25.

What is the SI Measurement for Time?

a)

second (s)

b)

mole (mol)

c)

joule (J) kJ

d)

kilogram (kg) gram (g)

26.

The smallest unit of matter in the universe is the __________.

a)

molecule

b)

compound

c)

atom

d)

does it really matter?

27.

What is the Scientific Method?

a)

A series of steps kind of like a road map that scientists use to understand why and how things work

b)

gathering information on a topic using our five senses. Examples: see, hear, taste, touch, and smell

c)

Final step or process explaining if the hypothesis was correct

d)

something that does not change

28.

What is the problem (question)?

a)

Final step or process explaining if the hypothesis was correct

b)

Should be "testable" and aims for answers to verify or explain a theory

c)

Something that doesn't change

d)

Gather information to help make a hypothesis

29.

What does making observations mean?

a)

something that does not change

b)

a scientific test that you perform in a series of actions to carefully observe how something works or doesn't work to learn about

c)

Facts about something that can be used for planning and reasoning

d)

gathering information on a topic using our five senses. Examples: see, hear, taste, touch, and smell

30.

What is a hypothesis?

a)

Any item, or factor, or condition that can be controlled or changed

b)

gathering information on a topic using our five senses. Examples: see, hear, taste, touch, and smell

c)

facts about something that can used for planning and reasoning

d)

it is a tentative explanation for an observation, phenomenon, or scientific problem that can be tested by further observation

31.

What is an experiment?

a)

observing and collecting data

b)

Scientists design and carry out tests and trials to determine if their hypothesis is correct

c)

a good question to be answered

d)

analyzing the results

32.

The information you collect while doing your experiment is called

a)

conclusions

b)

data

c)

hypotheses

d)

procedures

33.

Which are part of the scientific method?

a)

Identify the Problem

b)

Perform an Experiment

c)

Form a Hypothesis

d)

Collect lots of money

e)

Communicate the Results

34.

What is an independent variable?

a)

What a scientist changes in an experiment to test their hypothesis

b)

What scientist measure to see if it responded to a change

c)

What happens when you do an experiment

d)

What you keep the same throughout all experimental groups

35.

What is an dependent variable?

a)

What a scientist changes in an experiment to test their hypothesis

b)

What scientist measure to see if it responded to a change

c)

What happens when you do an experiment

d)

What you keep the same throughout all experimental groups

36.

At what temperature did bread mold the slowest?

a)

20

b)

40

c)

60

d)

80

37.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
38.
A testable explanation to a problem that has not yet been tested. 
a)
data
b)
theory
c)
hypothesis
d)
fact
39.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
40.
The summary at the end of an experiment that explains the results. 
a)
conclusion
b)
procedures
c)
materials
d)
responding variable
41.

What is an observation?

a)

A scientific statement based on ideas

b)

Using your senses to notice what is going on around you

c)

To be unaware of your surroundings

d)

The question that you want an answer to.

42.

Something that you keep the same in an experiment is called a(n) _________________________.

a)

variable

b)

control

c)

procedure

d)

conclusion

43.

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

44.

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.

45.
Which brand of paper towel will absorb the most liquid? What is the dependent variable?
a)
brand of paper towel
b)
amount of water absorbed
46.

Angel wants to know if the type of soap has an effect on how clean her clothes get. What is the independent variable?

a)

type of soap

b)

how long the laundry takes

47.

Angel wants to know if the type of soap has an effect on how clean her clothes get. What is the dependent variable?

a)

type of soap

b)

how clean the clothes are

48.

Zach wants to determine if the amount of time spent on social media has an effect of grades. What is the independent variable?

a)

time on social media

b)

computer skills

49.

Zach wants to determine if the amount of time spent on social media has an effect of grades. What is the dependent variable?

a)

popularity

b)

grades

50.

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.

51.
Which brand of paper towel will absorb the most liquid? What is the dependent variable?
a)
brand of paper towel
b)
amount of water absorbed
52.

Angel wants to know if the type of soap has an effect on how clean her clothes get. What is the independent variable?

a)

type of soap

b)

how long the laundry takes

53.

Angel wants to know if the type of soap has an effect on how clean her clothes get. What is the dependent variable?

a)

type of soap

b)

how clean the clothes are

54.

Zach wants to determine if the amount of time spent on social media has an effect of grades. What is the independent variable?

a)

time on social media

b)

computer skills

55.

Zach wants to determine if the amount of time spent on social media has an effect of grades. What is the dependent variable?

a)

popularity

b)

grades

56.
A testable prediction about a scientific investigation is a(n)
a)
Question
b)
Observation
c)
Hypothesis
d)
Experiment
57.

What is the last step of scientific method?

a)

hypothesis

b)

observe

c)

communicate

d)

question

58.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
59.

The information you collect while doing your experiment is called

a)

conclusions

b)

data

c)

hypotheses

d)

procedures

60.
If I ride my bike to school instead of walking, then I will get to school faster. What is the dependent variable?
a)
True
b)
How fast you get to school
c)
Riding a bike or walking
d)
False
61.

The variable that is being measured or observed is called the _______________. Hint: this is the variable that is the result or effect

a)

independent variable

b)

dependent variable

c)

control variable

62.

The process of obtaining information by using the senses is called a/an

a)

Conclusion

b)

Observation

c)

Inquiry

d)

Scientific method

63.

Data gathered using the senses are referred to ___________.

a)

quantitative data

b)

logical data

c)

measured data

d)

qualitative data

64.

An explanation based on many repeated observations during experiments.

a)

conclusion

b)

scientific law

c)

theory

d)

hypothesis

65.

A general statement that describes a patterns that are often observed in nature.

a)

logical law

b)

civil law

c)

moral law

d)

scientific law

66.

To make observations you use your _______.

a)

Feet

b)

Experience

c)

Senses

d)

Smile

67.

Performing a test or experiment allows you to test your ___________.

a)

Conclusions

b)

Hypothesis

c)

Data

d)

Question

68.
Convert: 186.5 K to C
a)
-86.4 C
b)
-50 C
c)
-68.4 C
d)
180 K
69.

Convert: -45.9 C to K:

a)

227.1 K

b)

400 K

c)

0 K

d)

373 K

70.

Convert 20.0oC to Kelvin.

a)

273 K

b)

298 K

c)

293 K

d)

20 K

71.

Convert 273K to oC

a)

546 oC

b)

-273 oC

c)

0 oC

d)

0 K

72.

Which of the following is the correct formula in converting ℃ to ℉

a)

5/9 (℉-32)

b)

9/5 (℃)+32

73.

Using the formula 5/9 (℉-32), convert 110 ℉ to ℃.

a)

33

b)

23

c)

53

d)

43

74.

Convert 45 oC to Kelvin

a)

318 K

b)

-228 K

c)

12285 K

d)

0.164 K

75.

A bunsen burner flame has a temperature of 1700 K, what is this temperature in Celsius?

a)

1427 oC

b)

1973 oC

c)

1463 oC

d)

6.3 oC

76.

Dry ice has a temperature of -78 oC, what is this temperature in Kelvin?

a)

195 K

b)

-351 K

c)

159 K

d)

-213 K

77.

Convert 305 K to degrees Celsius

a)

32 oC

b)

578 oC

c)

112 oC

d)

68 oC

78.

The temperature at which particles stop moving is

a)

0 oC

b)

32 oF

c)

0 K

d)

0 oF

79.

When it is cold the atoms move...

a)

slow

b)

fast

c)

still

d)

there are no atoms

80.

when it is hot the atoms move...

a)

slow

b)

fast

c)

still

d)

there are no atoms

81.

100 Celsius is ? Kelvin (K = Celsius + 273)

a)

173 K

b)

373K

c)

273 K

d)

0 K

82.

Which temperature is equal to 20 K?

a)

-253°C

b)

-293°C

c)

253°C

d)

293°C

83.

The number 0.0069 has...

a)

2 sigfigs

b)

4 sigfigs

c)

5 sigfigs

d)

1 sigfig

84.

The number 438000 has...

a)

2 sigfigs

b)

3 sigfigs

c)

6 sigfigs

d)

1 sigfig

85.

The number 5003.20 has ....

a)

4 sigfigs

b)

2 sigfigs

c)

6 sigfigs

d)

3 sigfigs

86.

What is the proper way to report this calculation ?

17.34 / 3.45?

a)

5.026 because the 17.34 has the most sigfigs

b)

5.03 because the 3.45 has the fewest sigfigs

c)

5.026087 because you need the most decimal places for accuracy

d)

5 because you should round the final answer to the nearest whole number

87.
How many significant figures does the following number have: 0.998005
a)
9
b)
10
c)
6
d)
5
88.
How many significant figures does 1.90 × 108 have?
a)
3
b)
4
c)
6
d)
8
89.

Round 1234.56 to three sig figs

a)

1000

b)

1200

c)

1230

d)

1235

e)

1234.6

90.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
91.

How would you write 0.0005 in scientific notation?

a)

50 x 10-5

b)

5 x 10-4

c)

5 x 103

d)

.5 x 103

92.

Which of the following numbers is written in scientific notation?

a)

20.35 x 104

b)

.2035 x 104

c)

2035 4

d)

2.035 x104

93.

Express the following in scientific notation:


.000457

a)

457 x 106

b)

457 x 10-6

c)

4.57 x104

d)

4.57 x 10-4

94.

Convert to scientific notation:


520,000,000

a)

52 x 107

b)

5.2 x 10-7

c)

5.2 x 108

d)

0.52 x 109

95.

If the exponent is a negative number the original number was...

a)

a really large number.

b)

a really small number.

96.

If the exponent is a positive number the original number was...

a)

a really big number.

b)

a really small number.

97.

Convert this number into scientific notation:


0.068

a)

6.9 x 106

b)

6.8 x 10-9

c)

6.8 x 10-2

d)

None of the above

98.

Convert this number into scientific notation:


950,000

a)

9.5 x 105

b)

9.5 x 10-9

c)

9.5 x 102

d)

None of the above

99.

Which value is the greatest?

a)

5.0 x 10-9

b)

5.0 x 10-4

c)

5.0 x 106

d)

5.0 x 108

100.
Change from standard form to scientific notation: 0.004078
a)
4.078  x  10-3
b)
4.078  x  103
c)
40.78  x  10-4
d)
.4078  x  10-2
101.
Change from standard form to scientific notation:  450,000
a)
4.5  x  105
b)
45  x  105
c)
4.5  x  104
d)
4.5  x  106
102.
Change from standard form to scientific notation:  0.000398
a)
39.8  x  10-5
b)
3.98  x  10-5
c)
3.98  x  10-4
d)
39.8  x  10-6
103.
Try to change the number back to standard form:  6.79  x  104
a)
679,000
b)
6,790
c)
67,900
d)
6,790,000
104.
How do you write
8.317 x 106
in standard form?
a)
8, 371, 000
b)
83, 170, 000
c)
837, 100
d)
8, 317, 000
105.

6.7×1016.7×10^1  

a)

0.67

b)

67

c)

670

d)

6.1

106.
Write 2.08 x 102  in standard form.
a)
208
b)
0.0208
c)
20,800
d)
0.208
107.
Write 5.43 x 10-7               in standard notation.
a)
0.000000543
b)
0.0000000543
c)
5,430,000,000
d)
54,300,000
108.

The attendance for the basketball game was estimated to be 15,000 people but 12,500 people attended. What was the percent error?

a)

16.67%

b)

20%

c)

2500%

d)

80%

109.

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%

110.
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%
111.
Zed went to the store and bought a bag of chips.  He estimated there would be 350 chips in the package, but realized there were only 210 chips in that package.  What was his percent error?
a)
35%
b)
67%
c)
85%
d)
92%
112.
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%
113.

Salt is an example of which classification of Matter?

a)

Element

b)

Pure Substance

c)

Mixture

d)

Compound

114.

The Matter Classification of Air is

a)

Compound

b)

Element

c)

Pure Substance

d)

Mixture

115.

Salt Water is

a)

Mixture

b)

Homogeneous Mixture

c)

Pure Substance

d)

Heterogeneous Mixture

116.

How would you Classify Sugar?

a)

Pure Substance

b)

Element

c)

Mixture

d)

Compound

117.

What would the Classification of Raisin Bread be?

a)

Compound

b)

Pure Substance

c)

Mixture

d)

Heterogeneous Mixture

118.

The Matter Classification for Iron is

a)

Compound

b)

Element

c)

Pure Substance

d)

Solution

119.

Sand & Water are Classified as

a)

Homogeneous Mixture

b)

Pure Substance

c)

Mixture

d)

Heterogeneous Mixture

120.

Copper is a/an

a)

Element

b)

Pure Substance

121.

In order to be classified as MATTER, a substance must have ____ and ____.

a)

mass

b)

volume

c)

taste

d)

weight

122.

Which of the following is classified as a compound?

a)

water

b)

iron

c)

gold

d)

mercury

123.

A mixture that is visually INDISTINGUISHABLE:

a)

homogeneous mixture

b)

heterogeneous mixture

124.

A mixture that is visually DISTINGUISHABLE:

a)

homogeneous mixture

b)

heterogeneous mixture

125.

Which of the following would be classified as a HETEROGENEOUS mixture?

a)

air

b)

fire

c)

water

d)

soil

126.

Which of the following would be classified as a HOMOGENEOUS mixture?

a)

oxygen

b)

iced tea

c)

a cheeseburger with everything

d)

aqueous salt water

127.

What below is NOT considered matter?

a)

Carbon atoms

b)

Gravity

c)

Bacteria

d)

Air

128.

What particle view below is a mixture?

a)

b)

c)

d)

129.

What is the best classification for this substance?

a)

An element

b)

A compound

c)

A mixture

130.

Is this a pure substance?

a)

Yes

b)

No

131.

What is the best classification of this substance?

a)

An element

b)

A compound

c)

A mixture of 2 elements

d)

A mixture of 2 compounds

132.

What is the best classification of this substance? H2SO4

a)

An element

b)

A compound

c)

A mixture

133.

What is the best classification of this substance? CO2 & H2S

a)

An element

b)

A compound

c)

A mixture of 2 compounds

d)

A mixture of many elements

134.

What is an example of a physical property?

a)

Silver is shiny

b)

Alcohols are flammable

c)

Alkali metals are reactive with water

d)

Acids are sometimes corrosive

135.

What is an example of a chemical change?

a)

Tearing paper

b)

Dissolving salt in water

c)

Melting ice

d)

Burning wood

136.

Does this particle view show an element or a compound?

a)

element

b)

compound

137.

Is this image showing a homogeneous or a heterogeneous mixture? Image: Cesar salad

a)

homogeneous

b)

heterogeneous

138.

Is this image showing a homogeneous or a heterogeneous mixture? Image: Milk

a)

homogeneous

b)

heterogeneous

139.

Does this image represent a chemical or a physical change?

a)

Chemical change

b)

Physical change

140.

Does this image represent a chemical or physical change?

a)

Chemical change

b)

Physical change

141.

Which below shows a CHEMICAL change?

a)

b)

c)

142.
Are made from a combination of 2 or more elements...
a)
Molecules
b)
Pure Substances
c)
Compounds
d)
Elements
143.
A mixture that is NOT evenly distributed is called ....
a)
Compounded
b)
Homogenous
c)
Heterogenous
d)
Salty
144.
Mixture, such as mixed nuts or dry soup mix, in which different materials are unevenly distributed and are easily identified.
a)
suspension
b)
homogeneous mixture
c)
heterogeneous mixture
d)
colloid
145.
Which of the following is not an element?
a)
water
b)
hydrogen
c)
carbon
d)
oxygen
146.
Which of the following IS a mixture?
a)
air
b)
hydrogen
c)
water
d)
sugar
147.
A mixture that contains two or more substances blended evenly throughout
a)
heterogeneous mixture
b)
homogeneous mixture
c)
suspension
d)
colloid
148.
A mixture that is so evenly mixed you can't see the parts.  Such as Kool-Aid
a)
Homogeneous Mixture
b)
Heterogeneous Mixture
c)
Pure Substance
149.

Is the following an element or compound? A silicon (Si) chip.

a)

element

b)

compound

150.

Is the following an element or compound? hydrogen peroxide (H2O2)

a)

element

b)

compound

151.

Which is NOT a physical property of table sugar?

a)

Forms solid crystals at room temperature

b)

appears as white crystals

c)

breaks down into carbon and water vapor when heated

d)

tastes sweet

152.

  • Shape, color, density, melting point

a)

extensive property

b)

examples of physical properties

c)

examples of chemical properties

d)

the same for all metals

153.

the ability or inability of a substance to combine with or change into one or more other substances

a)

physical property

b)

extensive property

c)

chemical property

d)

reaction

154.

Which is NOT an example of a chemical property

a)

pH

b)

melting

c)

corrosiveness

d)

radioactivity

155.

Density is an example of a

a)

intensive property

b)

extensive property

c)

chemical change

d)

state of matter

156.

Which of the following is NOT an example of a physical property

a)

Corrosiveness

b)

boiling point

c)

density

d)

color

157.

Which of the following IS an intensive property

a)

mass

b)

volume

c)

Melting Point

d)

length

158.

____________ cannot be observed without changing the sample's composition

a)

physical properties

b)

chemical properties

c)

extensive properties

d)

intensive properties

159.

flammability of a substance

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

160.

size of an object

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

161.

freezing point

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

162.

metals are corrosive

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

163.

fragrance of a flower

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

164.

a characteristic that indicates whether a substance can change to another substance

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

165.

a characteristic that can be observed without changing the substance

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

166.

density

a)

physical change

b)

physical property

c)

chemical change

d)

chemical property

167.
Which of the following is a Physical Property?
a)
Color
b)
Burning
c)
Corroding 
d)
Rusting
168.
Luster (how shiny something is) is considered a
a)
Physical property
b)
Chemical Property
169.

Copper wires are usually used for electrical wire installations because it is ductile is an example of a ____.

a)

physical property

b)

chemical property

c)

isothermal property

d)

exothermic property

170.

Materials that easily break when a force is applied like glass are said to be ____

a)

malleable

b)

brittle

c)

ductile

d)

elastic

171.

Which set of properties, intensive or extensive, are based on the size of a sample?

a)

intensive

b)

extensive

172.

What kind of physical property is this? Color

a)

intensive

b)

extensive

173.

What kind of physical property is this? Temperature

a)

intensive

b)

extensive

174.

What kind of physical property is this? Hardness

a)

intensive

b)

extensive

175.

What kind of physical property is this? Density

a)

intensive

b)

extensive

176.

What kind of physical property is this? Volume

a)

intensive

b)

extensive

177.

What kind of physical property is this? Mass

a)

intensive

b)

extensive

178.

What kind of physical property is this? Length

a)

intensive

b)

extensive

179.

What kind of physical property is this? Melting Point

a)

intensive

b)

extensive

180.
The first person to propose a theory about an atom was
a)
Democritus
b)
Rutherford
c)
Dalton
d)
Aristotle
181.
Rutherford's gold foil experiment provided evidence that...
a)
Negative and positive charges are spread evenly throughout the atom.
b)
Alpha particles have a positive charge.
c)
Gold is not a dense as previously thought.
d)
There is a dense positively charged nucleus at the center of an atom.
182.
What contribution did John Dalton make to atomic theory? 
a)
He discovered that every atom was positively charged. 
b)
He discovered that every element consisted of one type of atom.  
c)
He discovered that atoms had nuclei. 
d)
He discovered that atoms could be divided into smaller parts. 
183.
What scientist is best known for his "Plum Pudding" model of the atom?
a)
J.J. Thomson
b)
Ernest Rutherford
c)
John Dalton
d)
Democritus
184.
Who stated that all atoms of the same element are exactly alike?
a)
Democritus
b)
Dalton
c)
Thomson
d)
Borh
185.
Niels Bohr suggested that electrons.......
a)
are found in specific orbits
b)
electrons are scattered throughout the atom
c)
electrons move according to their energy level
d)
electrons are positive
186.
Which is the correct sequence of the scientists who made major changes in the model of the atom?
1-JJ Thomson
2-Erwin Schrodinger
3-John Dalton
4-Niels Bohr
5-Ernest Rutherford
a)
2, 1, 4, 3, 5
b)
3, 1, 5, 4, 2
c)
5, 3, 2, 1, 4
d)
4, 3, 2, 1, 5
187.
The word atom comes from a Greek word "atomos" that means
a)
Invisible
b)
Indivisible
c)

Divided

d)

Destroyed

188.
His atomic model was depicted similar to a planetary/solar system
a)
Bohr
b)
Thomson
c)
Rutherford
d)
Dalton
189.
Electrons are not factored into atomic mass because:
a)
They are so small their mass is negligible
b)
They're not in the nucleus
c)
They're too big
d)
They move so quickly their mass is zero
190.

MATCH THE FOLLOWING SCIENTIST TO THEIR CORRECT ATOMIC MODELS

a)

Dalton

b)

Thompson

c)

Rutherford

d)

Bohr

191.

MATCH THE FOLLOWING SCIENTIST TO THEIR CORRECT ATOMIC MODELS

a)

Chadwick

b)

Thompson

c)

Rutherford

d)

Bohr

192.

MATCH THE FOLLOWING SCIENTIST TO THEIR CORRECT ATOMIC MODELS

a)

Chadwick

b)

Thompson

c)

Rutherford

d)

Dalton

193.

MATCH THE FOLLOWING SCIENTIST TO THEIR CORRECT ATOMIC MODELS

a)

Chadwick

b)

Bohr

c)

Rutherford

d)

Dalton

194.
Which of the following is proposed by Erwin Schrodinger?
a)
Solar system model of the atom
b)
Plum pudding model of the atom
c)
Billiard ball model of the atom
d)
Electron cloud model of the atom
195.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

196.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
197.
Value representing the number of protons in an element
a)
Atomic Mass
b)
Mass Number
c)
Valence Electrons
d)
Atomic Number
198.
Subatomic particles that are neutral in charge
a)
Neutrons
b)
Protons
c)
Nucleus 
d)
Electrons
199.
Which two subatomic particles make up the nucleus of an atom?
a)
Protons and Electrons
b)
Neutrons and Electrons
c)
Electrons and Protons
d)
Protons and Neutrons
200.
Where are the Electrons found in the structure of an atom?
a)
In the nucleus
b)
In spaces around the nucleus
201.

What does the 6 represent?

a)

Atomic mass

b)

atomic number

c)

chemical symbol

d)

element name

202.
Where is most of the mass in an atom located?
a)
in the nucleus
b)
in the protons
c)
in the neutrons
d)
in the electrons
203.
What is the atomic number of the atom pictured? 
a)
9
b)
10
c)
18
d)
19
204.

What is the atomic number of this atom?

a)

1

b)

3

c)

4

d)

7

205.
What subatomic particle is electrically neutral (no charge)?
a)
Proton
b)
Ion
c)
Neutron
d)
Electron
206.
Which subatomic particles contribute the most to the mass of an atom?
a)
Protons, Neutrons, Electrons
b)
Protons only
c)
Protons and Electrons
d)
Protons and Neutrons
207.
How many protons does this atom have?
a)
2.5
b)
6
c)
5
d)
10.811
208.
In order for me to find the number of neutrons, I must round the atomic mass and then do what?
a)
atomic number-atomic mass
b)
atomic number x atomic mass
c)
atomic mass + atomic number
d)
atomic mass - atomic number
209.

How many neutrons are in Magnesium?

a)

36

b)

12

c)

24

d)

6

210.

How many electrons are in Sulfur?

a)

32

b)

16

c)

48

d)

8

211.

Which would you do to change this Lithium to a new element?

a)

Add a neutron

b)

Add an electron

c)

Add a proton

d)

Add a proton and neutron\

212.

Which atom will have a +1 charge?

a)

3 protons

4 neutrons

3 electrons

b)

3 protons

4 neutrons

4 electrons

c)

3 protons

4 neutrons

2 electrons

d)

3 protons

3 neutrons

3 electrons

213.
What is at the center of every atom?
a)
An electron
b)
A compound
c)
A molecule
d)
A nucleus
214.

All matter is made of _________.

a)
energy 
b)
atoms 
c)
electrons 
d)
compounds 
215.
The positively charged particles of an atom are the ________.
a)
electrons
b)
protons
c)
neutrons
d)
protons & neutrons
216.
What does the nucleus of an atom contain?
a)
Electrons and neutrons
b)
Protons and neutrons
c)
Neutrinos and positrons
d)
DNA and RN
217.

An electron has a _________ charge

a)

positive

b)

neutral

c)

negative

d)

massive

218.
How many Protons does Bromine have?
a)
45
b)
79.904
c)
80
d)
35
219.
What is titanium's atomic mass?
a)
47.867
b)
22
c)
26
d)
49
220.
The atomic mass of Boron is 10.81, which means Boron has..
a)
5 electrons and 6 protons, each weigh 1 amu
b)
5 neutrons and 6 electrons, each weigh 1 amu
c)
6 neutrons and 5 protons, each weigh 1 amu
d)
10.81 protons each weighing around 1 amu
221.
How many protons does this atom have?
a)
2.5
b)
6
c)
5
d)
10.811
222.

How many neutrons are in Magnesium?

a)

36

b)

12

c)

24

d)

6

223.

How many electrons are in Sulfur?

a)

32

b)

16

c)

48

d)

8

224.

Which of the following statements is true concerning the circled elements?

a)

They are metals

b)

They are non-metals

c)

They are rare earth metals

d)

They are metalloids

225.

Which of the following statements is true concerning all metalloids?

a)

They are extremely reactive

b)

They have properties of both metals and non-metals

c)

They are inert

d)

They have 6 energy levels

226.

Which of the following elements is non-reactive?

a)

sulfur

b)

iron

c)

strontium

d)

xenon

227.

In the modern periodic table, elements are arranged in order of ___.

a)

atomic mass

b)

increasing reactivity

c)

increasing atomic number

d)

decreasing atomic number

228.

Why did Mendeleev leave spaces in the table he developed?

a)

he knew more elements would be discovered

b)

he did not know what belonged in those spaces

c)

he wanted the table to look well-designed

d)

he didn't know the names of all the elements

229.

What are 3 broad classes of elements?

a)

metals, nonmetals, and metalloids

b)

solids, liquids, and gases

c)

small, medium, and large

d)

helium, neon, and argon

230.

The columns on the periodic table are known as ___.

a)

Groups

b)

Periods

c)

Metals

d)

Nonmetals

231.

The colors in the diagram indicate what?

a)

metalloids -- elements that act like both metals and nonmetals

b)

periods -- elements with electrons in the same level

c)

chemical families -- elements with similar properties

232.

The elements colored yellow are ---

a)

metals

b)

nonmetals

c)

metalloids

d)

periods

233.

The elements colored blue are ---

a)

metals

b)

nonmetals

c)

metalloids

d)

groups

234.

Which element is located in group 3, period 2?

a)

magnesium

b)

boron

c)

scandium

d)

lithium

235.

Which of these elements is a metalloid in period 4?

a)

carbon

b)

titanium

c)

potassium

d)

arsenic

236.
Name group 1 on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
noble gases
noble gases
d)
halogens
237.
Name group 18 on the periodic table.
a)
alkali metals
b)
alkaline earth metals
c)
transition metals
d)
noble gases
238.
Name groups 3 - 12 on the periodic table.
a)
noble gases
b)
halogens
c)
metalloids
d)
transition metals
239.
The period for Bromine is ___________.
a)
3
b)
2
c)
4
240.
Which of the following is not a property of metals?
a)
brittle
b)
malleable
c)
lustrous
d)
conductive
241.

what is the biggest group on the table

a)

metals

b)

nonmetals

c)

metaloids

d)

halogens

242.

how many rows are on the table

a)

4

b)

5

c)

6

d)

7

243.

how many groups/families are on the table

a)

15

b)

16

c)

17

d)

18

244.

Different isotopes of an element contain different numbers of ___.

a)

protons

b)

neutrons

c)

electrons

d)

elements

245.

If a proton is added or removed from an atom, what happens?

a)

It becomes a different element.

b)

It becomes a different isotope.

c)

Nothing happens.

246.

How many neutrons are in 1 atom of Carbon-13?

a)

6

b)

13

c)

7

d)

20

247.

How many protons are in an atom of Nitrogen-16?

a)

7

b)

9

c)

16

248.

What is the difference between Neon-20 and Neon-22?

a)

They have different numbers of electrons.

b)

They have different numbers of neutrons.

c)

Only 1 is radioactive.

d)

No difference.

249.

Which atom of these isotopes has 3 protons? The symbol for lithium is Li.

a)

Lithium-6

b)

Lithium-7

c)

All of them.

d)

Lithium-9

250.

How many neutrons are in this isotope?

a)

20

b)

41

c)

61

d)

21

251.

Which is the correct symbol for Fluorine-18?

a)
b)
c)
d)
252.

Potassium-39 has how many neutrons?

a)

19

b)

18

c)

20

d)

21

253.

Bromine-80 has how many neutrons?

a)

41

b)

42

c)

44

d)

45

254.

How many protons are in the isotope pictured above?

a)

29

b)

34

c)

63

d)

92

255.

Which subatomic particles are found in the nucleus of an atom? Choose all that apply.

a)

protons

b)

neutrons

c)

electrons

d)

alpha

256.

How many electrons does this magnesium ion have?

a)

24

b)

12

c)

10

d)

14

257.

How many protons, neutrons, and electrons?

a)

proton = 16, neutron = 8, electron = 10

b)

proton = 8, neutron = 16, electron = 8

c)

proton = 8, neutron = 8, electron = 10

d)

proton = 6, neutron = 2, electron = 6

258.

How many ELECTRONS does copper have if it has the following charge: Cu2+ ?

a)

64

b)

35

c)

27

d)

29

259.

If an atom has 9 protons 10 electrons and 10 Neutrons. What is the Charge of the Atom?

(a)  

260.
The photo above shows the isotopic notation for which isotope?
a)
Carbon 12
b)
Carbon 13
c)
Carbon 14
d)
Carbon 15

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