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Atoms & Nuclear Chemistry Test Review

Total questions: 110

Worksheet time: 1hrs 18mins

Name
Class
Date
1.
Which one is comprised of the other three? (For example, if you choose proton then you are stating that a proton is made up of an atom, an electron and a neutron.)
a)
proton
b)
atom
c)
electron
d)
neutron
2.
An atom always has a net charge that is __ because the charge of the protons __.
a)
positive; is greater than the charge of the electrons.
b)
negative; is less than the charge of the electrons.
c)
neutral; cancels out the charge of the neutrons.
d)
neutral; cancels out the charge of the electrons.
3.
What is the number of protons in an atom of iron-56?
a)
26
b)
53
c)
56
d)
77
4.
Which is the correct symbol for the atom with 42 protons and 49 neutrons?
a)
a.
b)
b.
c)
c.
d)
d.
5.
Which is the number of neutrons in ____?
a)
35
b)
45
c)
80
d)
115
6.

Which is the number of protons in ____?

a)
35
b)
45
c)
80
d)
115
7.

Which is the mass number ____?

a)
35
b)
45
c)
80
d)
115
8.
According to the modern concept of the atom, which are located in the nucleus of an atom?
a)
electrons and protons
b)
neutrons and electrons
c)
protons only
d)
protons and neutrons
9.
All atoms of a single element have the same ___.
a)
mass
b)
number of neutrons
c)
number of protons
10.
The atomic mass unit (amu) is defined as __.
a)
zero
b)
1/12th the mass of a carbon-12 atom
c)
1/100th the mass of a helium-4 atom
d)
the average atomic mass of a hydrogen-2 atom
11.
Isotopes are atoms of the same element that have different _______.
a)
numbers of electrons
b)
number of protons
c)
nuclear charges
d)
numbers of neutrons
e)
chemical properties
12.
Antimony (Sb) has two naturally occurring isotopes, Sb-121 and Sb-123. Using your periodic table, determine which isotope has the greatest % abundance.
a)
Sb-121
b)
Sb-123
c)
cannot be determined
13.
The neutron to proton ratio for the isotope boron-10 is _____ .
a)
1 : 1
b)
2 : 1
c)
2.5 : 1
d)
1.5 : 1
14.
The identity of an element (which element an atom is) depends upon the number of __ in the atom.
a)
protons
b)
electrons
c)
neutrons
d)
a, b & c
15.
What is the total number of electrons present in an atom of Cobalt-39?
a)
27
b)
32
c)
39
d)
86
16.
What is the mass number of the atom shown?
a)
11
b)
18
c)
19
d)
20
17.
Which element does this atom represent?
a)
potassium
b)
argon
c)
oxygen
d)
sodium
18.
Which is the correct symbol for the atom depicted above?
a)

a

b)

B

c)

C

d)

D

19.
Which type of nuclear decay releases the type of particle shown?
a)
alpha
b)
beta
c)
gamma
d)
proton
20.
Fusion reactions require .
a)
very large nuclei
b)
very rare elements as fuel
c)
very high temperatures
d)
very low temperatures
21.
Which of the following nuclear reactions is an example of alpha decay?
a)
a
b)
B
c)
C
d)
D
22.
The isotope formed by the alpha decay of is ____ .
a)
A
b)
B
c)
C
d)
D
23.
One of the most problematic issues surrounding the use of nuclear power plants is .
a)
finding a way to dispose of spent fuel
b)
a lack of uranium
c)
the high cost of coolant
d)
initiating a chain reaction
24.
In the picture below, which type of radiation is attracted to the positive electric plate?
a)
alpha
b)
beta
c)
gamma
25.
One product of all nuclear fission reactions is .
a)
a proton
b)
a helium nucleus
c)
an electron
d)
a smaller nucleus
26.
The least penetrating form of radiation is .
a)
alpha
b)
beta
c)
gamma
d)
positron
27.
The half-life of a radioisotope is the time it takes for that isotope .
a)
to decay completely
b)
to decay by one-half
c)
to emit radiation
28.
Identify the missing particle in the nuclear transmutation reaction:
a)
alpha
b)
beta
c)
gamma
d)
neutron
29.
In the figure below, what kind of nuclear activity is represented?
a)
gamma emission
b)
alpha emission
c)
fission
d)
fusion
30.
A substance that is radioactive has an unstable ?
a)
electron.
b)
nucleus.
c)
proton.
d)
neutron.
31.
The isotope formed by the beta decay of Nitrogen is .
a)
A
b)
B
c)
C
d)
D
32.
In the figure below, what kind of nuclear activity is represented?
a)
fission
b)
fusion
c)
alpha emission
d)
beta emission
33.
The half-life of a radioactive isotope is 30 seconds. How long does it take for a 5.0 gram sample of this isotope to decay to 0.3125 g?
a)
120 seconds
b)
180 seconds
c)
240 seconds
d)
480 seconds
34.
Which type of radiation is characterized by releasing high energy, resulting in no mass or proton change to the nucleus?
a)
Alpha
b)
Beta
c)
Gamma
d)
Fission
35.
Consider this diagram: Which of the three types of radiation will completely penetrate the paper and wood (or metal foil)?
a)
alpha, beta, and gamma
b)
gamma only
c)
alpha and beta only
d)
beta only
36.
Given an initial quantity of 10.0 mg of carbon-14, how much carbon-14 would remain after 2 half-lives.
a)
5.0 mg
b)
2.5 mg
c)
0 mg
d)
25 mg
37.
After a 200. mg sample of cobalt-60 undergoes radioactive decay only 25.0 mg remain. How many half-lives (cycles) did cobalt-60 undergo?
a)
8 half-lives
b)
3 half-lives
c)
2.4 half-lives
d)
3.3 half-lives
38.

Mercury is a at STP.

a)
solid
b)
liquid
c)
plasma
d)
gas
39.
Broken glassware should be __.
a)
hidden in a drawer
b)
swept into the hallway
c)
placed in the recycle container
d)
reported to the teacher
e)
thrown away in the trash can
40.
Which element is in group 6, period 4?
a)
Cr
b)
Hf
c)
Se
d)
Be
41.
Fluorine is a at STP.
a)
gas
b)
plasma
c)
liquid
d)
solid
42.

Bromine is a at STP.

a)
gas
b)
plasma
c)
liquid
d)
solid
43.
Name the laboratory equipment pictured below:
a)
funnel
b)
Erlyenmeyer flask
c)
beaker
d)
graduated cylinder
44.
Identify the element in period 3, group 15 of the periodic table.
a)
sodium
b)
potassium
c)
phosphorus
d)
sulfur
45.
Name the laboratory equipment pictured below:
a)
crucible tongs
b)
ring clamp
c)
test tube clamp
d)
test tube tongs
46.
Name the laboratory equipment pictured below:
a)
crucible tongs
b)
ring clamp
c)
test tube clamp
d)
test tube tongs
47.
Identify the location on the periodic table (period, group) of sodium.
a)
period 1, group 3
b)
period 3, group 16
c)
period 16, group 3
d)
period 3, group 1
48.

Identify the location on the periodic table (period, group) of sulfur.

a)
period 1, group 3
b)
period 3, group 16
c)
period 16, group 3
d)
period 3, group 1
49.
Which of the following statements is NOT correct?
a)
neutralize acids spills with baking soda
b)
add acid to water
c)
pour unused chemicals into the stock bottle
d)
Pyrex glassware may be heated
50.
Which accidents in the lab should be reported to the teacher?
a)
only if something is broken or spilled
b)
only if the fire extinguisher is needed
c)
all accidents should be reported to the teacher
d)
only if someone is injured
e)
only if someone else has caused the accident
51.

What is the overall charge for an atom?

a)
-1
b)
+2
c)
+1
d)
0
52.

Which two subatomic particles have approximately the same mass?

a)
Protons and Neutrons
b)
Photons and Neutrons
c)
Neutrons and Electrons
d)
Electrons and Protons
53.

What is amu defined as?

a)
One twenty-fourth of the mass of an oxygen atom.
b)
The total mass of a nitrogen atom.
c)
One half of the mass of a hydrogen atom.
d)
One twelfth of the mass of a carbon-12 atom.
54.

An element is considered radioactive when it has an unstable _____?

a)
electron
b)
proton
c)
quark
d)
nucleus
55.

All atoms of a single element have the same number of which subatomic particle?

a)
nuclei
b)
electrons
c)
protons
d)
neutrons
56.

Which subatomic particles are located in the nucleus of an atom?

a)
Protons and neutrons
b)
Protons and electrons
c)
Neutrons and neutrinos
d)
Electrons and positrons
57.

Which subatomic particle contributes to the mass of an atom?

a)
Photons and neutrinos
b)
Electrons and positrons
c)
Quarks and leptons
d)
Protons and neutrons
58.

How are isotopes of the same element different?

a)
Isotopes of the same element differ in the number of protons.
b)
Isotopes of the same element have different chemical properties.
c)
Isotopes of the same element differ in their electron configuration.
d)
Isotopes of the same element differ in the number of neutrons.
59.

When hydrogen is "fused" together on the Sun, what new element is created?

a)

Helium

b)

Carbon Dioxide

c)

Oxygen

d)

Light

60.

Can penetrate through paper, but cannot penetrate through foil.

a)

Alpha

b)

Beta

c)

Gamma

61.

Has the symbol: γ

a)

Alpha

b)

Beta

c)

Gamma

62.

When released during radioactive decay, the product's mass number would have changed by 4 and the atomic number by 2.

a)

Alpha

b)

Beta

c)

Gamma

63.

Has no mass or charge.

a)

Alpha

b)

Beta

c)

Gamma

64.

Has a charge of -1.

a)

Alpha

b)

Beta

c)

Gamma

65.

Has a large mass, and therefore cannot travel very far.

a)

Alpha

b)

Beta

c)

Gamma

66.

Has a +2 charge.

a)

Alpha

b)

Beta

c)

Gamma

67.

Can easily penetrate through paper, foil, and lead.

a)

Alpha

b)

Beta

c)

Gamma

68.
The splitting of a nucleus into smaller nuclei is
a)
fusion
b)
fission
c)
decay
d)
gamma radiation
69.

The spontaneous emission of radiation.

a)

Stable

b)

Radioactivity

c)

Transmutation

d)

Transuranium Elements

70.
What is the missing isotope that will balance the following nuclear equation?
94Be  +  11H →  _____  +  42He
a)
105B
b)
105Ne
c)
63Li
d)
63C
71.
What particle completes this reaction?
a)
alpha particle
b)
beta particle
c)
gamma particle
d)
neutron
72.

Refer to the image. What type of nuclear reaction is shown?

a)

Alpha Decay

b)

Beta Decay

c)

Gamma Emission

d)

Positron Emission

73.

A radioactive element has a half-life of 2 days. Which fraction represents the amount of an original sample remaining after 6 days?

a)

18\frac{1}{8}  

b)

12\frac{1}{2}  

c)

116\frac{1}{16}  

d)

14\frac{1}{4}  

74.

Which reaction represents fission?

a)
b)
c)
d)
75.

If 80 mg of a radioactive element decays to 10 mg in 30 minutes, what is the half-life of the element?

a)

10 min

b)

20 min

c)

30 min

d)

40 min

76.

What is the total number of grams remaining from an original 32-gram sample of P-32 after 71.5 days of decay?

a)

1.0 g

b)

2.0 g

c)

4.0 g

d)

8.0 g

77.

What type of decay?

a)

alpha

b)

beta

c)

positron

d)

gamma

78.

What type of particle is represented by ?

a)

alpha

b)

beta

c)

gamma

d)

none of these

79.

What type of particle is represented by

a)

alpha

b)

beta

c)

gamma

d)

none of these

80.

What are the values of x in the following alpha decay?

a)

236

b)

244

c)

60

d)

240

81.

What are the values of y in the following alpha decay?

a)

94

b)

92

c)

96

d)

236

82.

What are the values of x in the following beta decay?

a)

94

b)

236

c)

240

d)

96

83.

What are the values of y in the following beta decay?

a)

98

b)

96

c)

97

d)

240

84.

In balancing the nuclear reaction, What is the identity of the element labeled E?

a)

Pu

b)

U

c)

Th

d)

Np

85.

The missing product from this reaction is

a)

beta particle

b)

positron

c)

gamma particle

d)

alpha particle

86.

The missing product from this reaction is

a)

beta particle

b)

positron

c)

gamma particle

d)

alpha particle

87.

This reaction is an example of

a)

alpha decay

b)

beta decay

c)

positron decay

d)

electron capture

88.
In a correctly written symbol what would be located in the "A" position?
a)
number of neutrons
b)
atomic number
c)
number of electrons 
d)
mass number
89.
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
90.

What did Rutherford's gold foil experiment discover?

a)

electrons

b)

law of conservation of mass

c)

the nucleus

d)

neutrons

91.

One part of Dalton's Atomic Theory that has been revised is that an element consists of atoms that...

a)

cannot be divided

b)

that are different from atoms of other elements

c)

that can be combined, separated or rearranged during chemical reactions

d)

cannot be created or destroyed

92.
Which model of the atom proposed that atoms were positive spheres with negative electrons in them?
a)

Nuclear Model

b)

Billiard Ball Model

c)

Plum Pudding (or Chocolate Chip Cookie) Model

d)

Planetary Model

93.
Referring to the table, what is the relative mass of a proton?
a)
10
b)
1
c)
0.1
d)
0.01
94.
All matter is made of 
a)
energy 
b)
atoms 
c)
air
d)
chemistry
95.
What number indicates the nucleus?
a)
1
b)
2
c)
3
d)
4
96.

How many neutrons does this isotope of calcium have?

a)

20

b)

40

c)

60

d)

0

97.

What is the most common isotope of neon?

a)

neon-10

b)

neon-20

c)

neon-30

d)

cannot be determined by using the periodic table

98.

How many protons and electrons does this element have?

a)

35

b)

18

c)

17

d)

52

99.

The smallest particle of an element.

a)

Element

b)

Molecule

c)

Atom

100.

Protons + Neutrons = ?

a)

# of electrons

b)

Atomic Number

c)

Atomic Mass

d)

Mass Number

101.
Subatomic particles with a positive charge
a)
neutrons
b)
atomic mass
c)
protons
d)
isotopes
102.

Subatomic particles with a negative charge

a)

Electrons

b)

Neutrons

c)

Protons

d)

Quarks

103.

Calculate the atomic mass of gallium (Ga). Gallium has two isotopes:69Ga and 71Ga. 69Ga has a relative abundance of 60.12% and an atomic mass of 68.9257 amu. 71Ga has a relative abundance of 39.88 % and an atomic mass of 70.9249 amu.

a)
70.000 amu
b)
71.200 amu
c)
68.500 amu
d)

69.7230 amu

104.

 A radioactive isotope has a half-life of 100 min. If there were 500 mg of the substance originally, how much would be left after 700 minutes?


a)
3.90625 mg
b)
1.5625 mg
c)
12.5 mg
d)
250 mg
105.

A bone is found containing 35 mg of C-14. If it originally should have contained 280 mg and the half- life of C-14 is 5730 years, how old is the bone?


a)
17190 years
b)
5000 years
c)
25000 years
d)
10000 years
106.

 How many half-lives have occurred if there is 65 mg of a sample that originally contained 1040 mg?


a)
3
b)
5
c)
6
d)
4
107.

  1. Uranium has three common isotopes. If the abundance of 234 U is 0.0100%, the abundance of 235 U is 0.710%, and the abundance of 238 U is 99.28%, what is the average atomic mass of uranium? . Include 3 digits past the decimal and a unit.


a)

237.978 amu

b)

235.000 amu

c)

238.500 amu

d)

236.800 amu

108.

If the abundance of 85 Rb (84.9118 amu) is 72.2% and the abundance of 87 Rb (86.9092 amu) is 27.8%, what is the average atomic mass of rubidium?

a)

85.4671 amu

b)
84.9118 amu
c)
86.9092 amu
d)
85.000 amu
109.

Identify the location of gold on the periodic table (period, group). Period _______; Group _______


a)
Period 6; Group 9
b)
Period 5; Group 10
c)
Period 7; Group 12
d)
Period 6; Group 11
110.

How many half-lives have occurred if there is 31.25 mg of a sample that originally contained 1000 mg?


a)
3
b)
7
c)
10
d)
5

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