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1st Semester Review Questions

Total questions: 102

Worksheet time: 8hrs 26mins

Name
Class
Date
1.

Which element is found in group 2, period 6?

a)

Oxygen (O)

b)

Barium (Ba)

c)

Selenium (Se)

d)

Carbon (C)

2.

Which element has similar chemical properties as sodium but has 7 orbits?

a)

Francium (Fr)

b)

Cesium (Cs)

c)

Rubidium (Rb)

d)

Potassium (K)

3.

Nonmetals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

can be solid, liquids, or gases at room temperature.

4.

Metals (select all that apply)

a)

are found on the right side of the periodic table.

b)

are found on the left side of the periodic table.

c)

are good conductors of heat and electricity.

d)

are brittle.

e)

are malleable and ductile.

5.
__________ would have some characteristics of metals and some characteristics of nonmetals.
a)
Gold
b)
Sodium
c)
Arsenic
d)
Bismuth
6.

Periodic law states that the elements are arranged according to their atomic ________ so that elements with similar chemical properties are in the same ________ and properties repeat periodically.

a)

numbers, rows

b)

masses, rows

c)

masses, column

d)

numbers, column

7.

Elements in the same group or family have _____________.

a)

the same number of valence electrons and different properties.

b)

the same number of valence electrons and similar properties

c)

different number of valence electrons and similar properties.

d)

different number of valence electrons and different properties.

8.

What is the term of an atom that will lose electron(s) and have a positive change?

a)

cation

b)

anion

c)

electronegativity

d)

ionic radius

9.

Which color on the image of the periodic table corresponds with the halogens.

a)

red

b)

black

c)

blue

d)

orange

10.

Which color on the image of the periodic table corresponds with the transition metals.

a)

red

b)

black

c)

blue

d)

orange

11.

Which color on the image of the periodic table corresponds with the metalloids.

a)

bright yellow

b)

gold

c)

teal

d)

light blue

12.

Which color on the image of the periodic table corresponds with the alkaline earth metals.

a)

yellow

b)

dark yellow

c)

blue/green

d)

teal

13.

The periodic table is mostly comprised of what type of element?

a)

Metals

b)

Nonmetals

c)

Metalloids

14.

Which of the following will have similar properties?

a)

O, S, Se

b)

O, F, Ne

c)

N, Ne, Na

d)

H, K, P

15.
Which is an alkali metal?
a)
Magnesium
b)
Iron
c)
Sodium
d)
Europium
16.
Which is a halogen?
a)
Helium
b)
Chlorine
c)
Oxygen
d)
Neptune
17.

Match the following

a)

lithium

1.

2 orbits

b)

helium

2.

1 orbit

c)

aluminum

3.

3 orbits

d)

bromine

4.

4 orbits

e)

strontium

5.

5 orbits

18.

a collection of atoms of one type that cannot be broken down into simpler substances by ordinary chemical or physical means

a)

element

b)

subatomic particle

c)

electron

d)

matter

19.

a subatomic particle, contained in the nucleus of an atom, having the same mass as a proton but no electrical charge

a)

proton

b)

neutron

c)

electron

d)

matter

20.

How many "valence electrons" are in chlorine?

a)
7
b)
2
c)
17
d)
8
21.
Which is an electron?
a)
A
b)
B
c)
C
22.
Which is a proton?
a)
A
b)
B
c)
C
23.
An atom becomes _________ when it gains electrons.
a)
Positive
b)
Negative
c)
Neutral
d)
Invinsible
24.

How will these charges interact?

a)

Repel

b)

Attract

c)

No interaction

25.

How will these charges interact?

a)

Repel

b)

Attract

c)

No interaction

26.

How will these charges interact?

a)

Repel

b)

Attract

c)

No interaction

27.
How many neutrons does the isotope of lithium have?
a)
8
b)
3
c)
4
d)
5
28.
How many protons does this isotope of titanium have?
a)
48
b)
22
c)
26
d)
70
29.

What is the symbol for 18 protons, 22 neutrons

a)

Argon - 18

b)

Argon - 40

c)

Titanium - 22

d)

Titanium - 40

30.
The top number in this isotope notation is
a)
the mass number
b)
the atomic number
c)
the atomic mass
d)
the neutron number
31.
This is an example of...
a)
Fission  reaction
b)
Fusion reaction
c)
Decomposition reaction
d)
Decay
32.
Which atoms combine together during fusion reaction on the sun?
a)
Helium and Hydrogen atoms
b)
Hydrogen atoms
c)
Hydrogen and Lithium atoms
d)
Hydrogen and Carbon atoms
33.
One disadvantage of nuclear energy is ___.
a)
it is a fossil fuel
b)
it leaves behind radioactive waste
c)
it emits large amounts of pollution into the atmosphere
d)
there are no disadvantages
34.
The original element that undergoes radioactive decay is known as the...
a)

daughter nuclei

b)
half-life
c)

parent nuclei

d)

radiation

35.

Solve this equation for alpha decay.

85209At --> ___ + 24He

a)

83205Bi

b)

86209Rn

c)

81207Tl

d)

85208At

36.

Carbon-14 has a half life of 5730 years, how many years would it take the 4.0 g sample to decay to 0.25 g?

a)

4 years

b)

5730 years

c)

22,920 years

d)

28,650 years

37.
Has the highest penetrating power.  Can penetrate our body.  Even several cm thick of lead or several meters thick of concrete cannot stop all of it.
a)
Alpha
b)
Beta
c)
Gamma
38.
Has the lowest penetrating power.  Can only penetrate 0.05 mm into the body and can be stopped by a piece of paper or clothing.
a)
Alpha
b)
Beta
c)
Gamma
39.

What type of radioactive decay is happening?

a)

Alpha

b)

Beta

c)

Gamma

40.

What type of radioactive decay is happening?

a)

Alpha

b)

Beta

c)

Gamma

41.
For which of the following problems would a scientist most likely use carbon-14? 
a)
to calculate the age of the Earth's oldest rocks
b)
to calculate the age of a piece of bone 
c)
to identify the elements that make up a rock 
d)
to identify the elements that make up a bone
42.

Which alpha emitting radioisotope is found in smoke detectors?

a)

Polonium-210

b)

Uranium-238

c)

Americium-241

d)

Carbon-14

43.

Which model of the atom is denoted as the "plum pudding" model?

a)

A

b)

B

c)

C

d)

D

e)

E

44.
This model this model was the first to show a nucleus, consisting of protons and neutron.  Electrons surround the nucleus but are not shown in distinct energy levels. 
a)
The "Rutherford Model" of the atom
b)
The "Plum Pudding Model" of the atom
c)
The "Quantum Mechanical Modell" of the atom
d)
Democritus's model of the atom
45.

Choose THREE benefits of using nuclear power

a)

no CO2 emitted to the atmosphere to cause global warming

b)

no fossil fuels are burned

c)

there is no waste with nuclear power

d)

it provides a large amount of electricity

e)

the waste stays radioactive for thousands of years

46.

For the typical human, 65% of their yearly radiation exposure is due to _________________.

a)

natural sources (soil, water, air)

b)

medical sources (x-rays, CT scans, PET scans)

c)

nuclear power plant waste exposure

d)

solar ray exposure

47.

Using oral or injected drugs or medicines to destroy cancer cells.

a)
chemotherapy
b)
radiation therapy
c)
cancer surgery
d)
mitotic spindling
48.

A type of cancer treatment that uses beams of intense gamma energy rays to kill cancer cells.

a)

chemotherapy

b)

radiation therapy

c)

cancer surgery

49.

Phase change from liquid to gas is called:

a)

Freezing

b)

Condensation

c)

Vaporization

d)

Sublimation

50.

Phase change from liquid to solid is called:

a)

Melting

b)

Freezing

c)

Deposition

d)

Condensation

51.

Look at the picture. Which state of matter is in beaker A?

a)

Solid

b)

Liquid

c)

Gas

d)

Blue thingys

52.

If I add heat to a solid, how will the motion of the particles be affected?

a)

They will move slower

b)

They will stop moving

c)

They will move faster

d)

They will move to a different container

53.
What type of mixture is this?
a)
homogenous mixture
b)
chemical
c)
heterogeneous mixture 
d)
solid mix
54.
This picture represents which of the following?
a)
element
b)
compound
c)
mixture
55.
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
56.

What type of matter would you consider sweet tea to be?

a)
Element
b)
Compound
c)
Homogeneous Mixture
d)
Heterogeneous Mixture
57.

Chemical changes/reactions can be shown by using

a)

chemical tables

b)
chemical equations
c)

math formulas

d)

charts

58.

What type of change is burning something to produce heat?

a)
physical change
b)
chemical change
59.

What type of change is warming up food by putting it in the microwave?

a)

physical change

b)

chemical change

60.

What type of change is adding sugar to water so it dissolves?

a)
physical change
b)
chemical change
61.

What particle view below is a mixture?

a)

b)

c)

d)

62.

What is the best classification of this substance? H2SO4

a)

An element

b)

A compound

c)

A mixture

63.

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

64.

What is an example of a chemical change?

a)

Tearing paper

b)

Dissolving salt in water

c)

Melting ice

d)

Burning wood

65.

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

a)

homogeneous

b)

heterogeneous

66.
A gold bar is an example of a.....
a)
pure element
b)
pure compound
c)
heterogeneous mixture
d)
homogeneous mixture
67.

Which of these pieces of equipment is used for measuring volume in the most accurate way possible?

a)

b)

c)

d)

68.

Which of these is a Ring Stand?

a)

b)

c)

d)

e)

69.

Which of these is a Wire Gauze??

a)
b)
c)
d)
e)
70.

Which of these pieces of equipment is a Test Tube Holder?

a)
b)
c)
d)
71.

Which of these pieces of equipment is an Evaporating Dish?

a)
b)
c)
d)
72.
A beaker is used to measure volume in which metric unit?
a)
Milliliters (mL)
b)
Grams (g)
c)
Meters (m)
d)
Kilograms (kg)
73.
Which of the following should NOT be worn during a lab investigation?
a)
Flip flops
b)
Loose, long hair
c)
Dangling jewelry
d)
All of the above
74.
You accidentally cut yourself.  It is small and barely bleeds. You should
a)
wash the cut
b)
call you mom
c)
run to the nurse
d)
tell the teacher
75.

( Fill in the blank) Long hair should be ____________ in the laboratory.

a)

tied back

b)

cut

c)

down

d)

curled

76.

You are heating a piece of glass and now want to pick it up. You should

a)

use a rag or paper towels.

b)

pick up the end that looks cooler.

c)

use tongs.

d)

pour cold water on it.

77.
Anything that takes up space and has mass is known as _______________.
a)
Matter
b)
Molecules
c)
Compounds
d)
Stuff
78.

What type of change occurs when silver tarnishes/oxidizes?

a)

Physical

b)

Chemical

79.

Identify the following matter by its correct classification:


"muddy water that settles into layers with time"

a)

compound

b)

element

c)

homogeneous mixture

d)

heterogeneous mixture

80.

Identify the following substance as either a compound, element, or mixture.


C₆H₁₂O₆

a)

compound

b)

element

c)

mixture

81.

Calculate the density of the rectangular prism

Formula: Volume = length x width x height

Formula: Density = mass/volume

a)

2 g/cm3

b)

4 g/cm3

c)

6 g/cm3

d)

8 g/cm3

82.

An irregularly shaped piece of gold was lowered into a graduated cylinder holding a volume of water equal to 17 ml. The height of the water rose to 20 ml. If the mass of the gold was 27 g, what was its density?

Formula: Density = mass/volume

a)
9 g/mL
b)
10.5 g/mL
c)
6.5 g/mL
d)
8 g/mL
83.

Which options shows the correct conversion between grams and milligrams?

a)

85g = 8,500mg

b)

85g = 8.5mg

c)

85g = .85mg

d)

85g = 85,000mg

84.

Match the following concepts to their base units

a)

length

1.

meter

b)

mass

2.

gram

c)

volume

3.

liter

85.

Which metric unit is the smallest meter based unit from these four?  

a)
km
b)
mm
c)
m
d)
cm 
86.

The amount of space occupied by an object is called?

a)

Mass

b)

Volume

c)

Length

d)

Measurement

87.

What is the First Step of the Engineering Design Process?

a)

Testing and Evaluating

b)

Develop and Design Solutions

c)

Identifying the Problem

d)

Research the Problem

88.

Which word best describes a constraint in the engineering field?

a)
option
b)
opportunity
c)
limitation
d)
goal
89.

A student is designing and building a sled for an olympic ice luge. Which of the following could be a criteria?

a)

Sleds are fun.

b)

Sleds can weigh no more than 23 kilograms.

c)

Sleds are dangerous.

d)

The people who compete are called sliders.

90.

This type of engineer develops technologies related to healthcare and tools for health.

a)

Biomedical engineer

b)

Materials engineer

c)

Computer engineer

d)

Chemical engineer

91.

This engineer oversees the construction of buildings, roads, bridges, railways, and tunnels.

a)

Biomedical engineer

b)

Chemical engineer

c)

Civil engineer

d)

Mechanical engineer

92.

The area of study that focuses on the composition of matter.

a)

Biochemistry

b)

Analytical Chemistry

c)

Physical Chemistry

d)

Inorganic Chemistry

93.

Study of chemicals, that in general, do not contain carbon is called

a)

Organic chemistry

b)

Inorganic chemistry

c)

Biochemistry

d)

Chemistry

94.

How would you write 4.3756 x 104 in standard form (the regular number format without the x 10)??

(a)  

95.

How would you write -5.6 x 10-3 in standard form (the regular number format without the x 10)?

(a)  

96.

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

97.
How many significant figures does the following number have: 0.00204
a)
6
b)
4
c)
3
d)
2
98.

How many significant figures are in the following number?

34.900

(a)  

99.

What is the correctly rounded answer to 15.773 + 2.8 = ?

Hint: Your answer should have the same decimal places as the measurement with the least decimal places.

(a)  

100.

What is 375.6523 to four significant figures?

a)

375.0

b)

375.00

c)

375.7

d)

375.6

101.

Which one is rounded to the correct number of significant figures for the following equation?

7520 x 0.021 = 157.92

Hint: Your answer should have the same sig figs as the value with the least significant figures.

a)

157.92

b)

157.9

c)

158

d)

160

102.

Which answer is rounded to the correct place for the equation below?

487.0 / .0024 = 121750.0

Hint: Your answer should have the same sig figs as the value with the least significant figures.

a)

121750.0

b)

121800

c)

122000

d)

120000

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