Question 1

A nuclear equation is balanced when

Accepted Answer

A)   the same elements are found on both sides of the equation.
B)   the sum of the mass numbers and the sum of the atomic numbers of the particles and atoms are the same on both sides of the equation.
C)   the same particles and atoms are on both sides of the equation.
D)   different particles and atoms are on both sides of the equation.
E)   the charges of the particles and atoms are the same on both sides of the equation.F) B) and D)
G) B) and C)

Question 2

In the Sun, nuclei of hydrogen combine to form a larger nucleus and release a great amount of energy. The process is known as

Accepted Answer

A)   fission.
B)   fusion.
C)   metathesis.
D)   chain reaction.
E)   ionization.F) A) and E)
G) B) and C)

Question 3

The recommended dosage of I-131 for a test is 4.2 microcuries per kg of body weight. How many millicuries should be given to a 55 kg patient? (1 mCi = 1000 μCi)

Accepted Answer

A)   230 millicuries
B)   0.23 millicuries
C)   0.076 millicuries
D)   760 millicuries
E)   13.8 millicuriesF) B) and D)
G) A) and D)

Question 4

235
92
 U + 1
0 n → __________ + 91
36 Kr + 3 1
0 n + energy

Accepted Answer

The answer of 
235
92
 U + 1
0 n → __________...

Question 5

Indicate whether each of the following is characteristic of the fission or fusion process.
-Large amounts of energy are released.

Accepted Answer

A)  both fission and fusion
B)  fusion
C)  fissionD) A) and B)
E) A) and C)

Question 6

A person begins to suffer radiation sickness at an exposure level of

Accepted Answer

A)   25 rem.
B)   5 rem.
C)   500 rem.
D)   100 rem.
E)   600 rem.F) C) and E)
G) A) and E)

Question 7

The unit used to measure the amount of radiation absorbed by a gram of material is called then

Accepted Answer

A)   rad.
B)   RBE.
C)   curie.
D)   rem.
E)   MPD.F) All of the above
G) A) and C)

Question 8

A positron is a particle emitted from the nucleus that has the same mass as a(n)

Accepted Answer

A)   electron but has a positive charge.
B)   neutron but has a positive charge.
C)   alpha particle.
D)   beta particle.
E)   proton emitted from the nucleus.F) B) and D)
G) A) and C)

Question 9

The damaging effects of radiation on the body are a result of

Accepted Answer

A)   the formation of unstable ions or radicals.
B)   the formation of radioactive atoms in the body.
C)   transmutation reactions in the body.
D)   extensive damage to nerve cells.
E)   the production of radioactive sodium ions in the body.F) All of the above
G) None of the above

Question 10

What is the radiation particle used in the bombardment of nitrogen-14?

14
7 N + ? ? 14
6 C + 
1 
1
 H

Accepted Answer

A)   alpha particle
B)   beta particle
C)   gamma ray
D)   proton
E)   neutronF) All of the above
G) A) and E)

Question 11

In the nuclear equation of a beta emitter,

Accepted Answer

A)   the new nucleus contains 2 fewer protons.
B)   the new nucleus contains 2 more protons.
C)   the mass number of the new nucleus is 4 less than that of the original nucleus.
D)   the new nucleus contains 1 more proton.
E)   the new nucleus contains 1 less proton.F) None of the above
G) A) and D)

Question 12

The product from the alpha decay of 
235
92
 U is

Accepted Answer

A)   235 93 Np.
B)   23994 Pu.
C)   23190 Th.
D)   23380 Ra.
E)   23692 U.F) B) and D)
G) C) and D)

Question 13

What is the radioactive particle released in the following nuclear equation? 
90
38 Sr ? 90
39 Y + ?

Accepted Answer

A)   alpha particle
B)   beta particle
C)   gamma ray
D)   proton
E)   neutronF) A) and E)
G) A) and B)

Question 14

90
38 Sr → __________ + 0
$- 1$ e + energy

Accepted Answer

The answer of 90
38 Sr → __________ + 0
$- 1$...

Question 15

The radioisotope used as a diagnostic tool to measure thyroid function is __________.

Accepted Answer

The answer of The radioisotope used as a diagnostic tool...

Question 16

The nuclear symbol of helium, 4
2 He, is also the symbol for designating a(n)

Accepted Answer

A)   proton.
B)   neutron.
C)   gamma ray.
D)   beta particle.
E)   alpha particle.F) B) and D)
G) A) and E)

Question 17

Choose the type of radiation from Column 2 that best matches each item in Column 1.
-γ

Accepted Answer

A)  beta particle
B)  neutron
C)  gamma ray
D)  positron
E)  protonF) alpha particleG) None of the above
H) A) and B)

Question 18

The symbol 0
-1 e is a symbol used for a(n)

Accepted Answer

A)   proton.
B)   neutron.
C)   gamma ray.
D)   beta particle.
E)   alpha particle.F) B) and D)
G) D) and E)

Question 19

When an atom of uranium-235 is bombarded with neutrons, it splits into smaller nuclei and produces a great amount of energy. This nuclear process is called

Accepted Answer

A)   fission.
B)   fusion.
C)   decomposition.
D)   chain reaction.
E)   ionization.F) B) and C)
G) A) and C)

Question 20

The most widely used medical isotope in nuclear medicine is

Accepted Answer

A)   Tc-99m.
B)   I-131.
C)   P-32.
D)   I-125.
E)   Co-60.F) C) and E)
G) C) and D)

Exam 4: Nuclear Chemistry

What is the radiation particle used in the bombardment of nitrogen-14? 14 7 N + ? ? 14 6 C + 1 1 H

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The recommended dosage of I-131 for a test is 4.2 microcuries per kg of body weight. How many millicuries should be given to a 55 kg patient? (1 mCi = 1000 μCi)

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90 38 Sr → __________ + 0 −1- 1−1 e + energy

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The most widely used medical isotope in nuclear medicine is

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The symbol 0 -1 e is a symbol used for a(n)

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235 92 U + 1 0 n → __________ + 91 36 Kr + 3 1 0 n + energy

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A nuclear equation is balanced when

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Choose the type of radiation from Column 2 that best matches each item in Column 1. -γ

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When an atom of uranium-235 is bombarded with neutrons, it splits into smaller nuclei and produces a great amount of energy. This nuclear process is called

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A positron is a particle emitted from the nucleus that has the same mass as a(n)

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In the nuclear equation of a beta emitter,

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The damaging effects of radiation on the body are a result of

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The product from the alpha decay of 235 92 U is

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The unit used to measure the amount of radiation absorbed by a gram of material is called then

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In the Sun, nuclei of hydrogen combine to form a larger nucleus and release a great amount of energy. The process is known as

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What is the radioactive particle released in the following nuclear equation? 90 38 Sr ? 90 39 Y + ?

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Indicate whether each of the following is characteristic of the fission or fusion process. -Large amounts of energy are released.

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The radioisotope used as a diagnostic tool to measure thyroid function is __________.

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A person begins to suffer radiation sickness at an exposure level of

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The nuclear symbol of helium, 4 2 He, is also the symbol for designating a(n)

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90 38 Sr → __________ + 0 $- 1$ e + energy

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