Question 1

Indicate whether each of the following is characteristic of the fission or fusion process.
-This nuclear process provides the energy of the Sun.

Accepted Answer

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

Question 2

The nuclear reaction 
126 
50
 Sn ? 
126
51
 Sb + ? is an example of

Accepted Answer

A)  fusion. 
B)  fission. 
C)  translation. 
D)  alpha emission. 
E)  beta emission. 
A)  fusion. 
B)  fission. 
C)  translation. 
D)  alpha emission. 
E)  beta emission.

Question 3

What is missing in the nuclear reaction shown below?

10 
5
 B + 4
2 He ? 13
7 N + _____

Accepted Answer

A)  gamma radiation 
B)  a positron 
C)  a neutron 
D)  an alpha particle 
E)  a beta particle 
A)  gamma radiation 
B)  a positron 
C)  a neutron 
D)  an alpha particle 
E)  a beta particle

Question 4

Nuclear fusion does not occur naturally.

Accepted Answer

A) True 
 B)False

Question 5

Which is NOT a way to minimize your exposure to radiation?

Accepted Answer

A)  wearing a lead apron 
B)  keeping a good distance 
C)  standing behind a thick concrete wall 
D)  wearing lead-lined gloves 
E)  staying a longer time 
A)  wearing a lead apron 
B)  keeping a good distance 
C)  standing behind a thick concrete wall 
D)  wearing lead-lined gloves 
E)  staying a longer time

Question 6

The half-life of bromine-74 is 25 min. How much of a 4.0 mg sample is still active after 75 min?

Accepted Answer

A)  0.50 mg 
B)  1.0 mg 
C)  2.0 mg 
D)  0.25 mg 
E)  4.0 mg 
A)  0.50 mg 
B)  1.0 mg 
C)  2.0 mg 
D)  0.25 mg 
E)  4.0 mg

Question 7

Nitrogen-17 is a beta emitter. What is the isotope produced in the radioactive decay?

Accepted Answer

A)  18
6 C 
B)  13
5 B 
C)  18
7 N 
D)  13
9 F 
E)  17
8 O 
A)  18
6 C 
B)  13
5 B 
C)  18
7 N 
D)  13
9 F 
E)  17
8 O

Question 8

When a positron is emitted from the nucleus of an atom, the nuclear mass

Accepted Answer

A)  increases by two units. 
B)  decreases by one unit. 
C)  increases by one unit. 
D)  decreases by two units. 
E)  remains the same. 
A)  increases by two units. 
B)  decreases by one unit. 
C)  increases by one unit. 
D)  decreases by two units. 
E)  remains the same.

Question 9

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

Accepted Answer

A) beta particle 
B) neutron 
C) gamma ray 
D) positron 
E) proton
F)alpha particle 
A) beta particle 
B) neutron 
C) gamma ray 
D) positron 
E) proton
F)alpha particle

Question 10

Exposure to radiation is unavoidable because some radioactive elements occur naturally.

Accepted Answer

A) True 
 B)False

Question 11

$99 \mathrm {~m}$
43 Tc → 99
43 Tc + __________

Accepted Answer

The answer of $99 \mathrm {~m}$
43 Tc → 99
43 Tc...

Question 12

If the half-life of hydrogen-3 is 11.8 years, after two half-lives the radioactivity of a sample will be reduced to one-half of the original amount.

Accepted Answer

A) True 
 B)False

Question 13

What is the radioactive particle released in the following nuclear equation? 159
74 W ? 155
72 Hf + ?

Accepted Answer

A)  alpha particle 
B)  beta particle 
C)  gamma ray 
D)  proton 
E)  neutron 
A)  alpha particle 
B)  beta particle 
C)  gamma ray 
D)  proton 
E)  neutron

Question 14

Gamma rays require the heaviest shielding of all the common types of nuclear radiation because gamma rays have the

Accepted Answer

A)  highest energy. 
B)  most intense color. 
C)  lowest energy. 
D)  largest particles. 
E)  heaviest particles. 
A)  highest energy. 
B)  most intense color. 
C)  lowest energy. 
D)  largest particles. 
E)  heaviest particles.

Question 15

Indicate whether each of the following is characteristic of the fission or fusion process.
-A large nucleus is split into smaller nuclei.

Accepted Answer

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

Question 16

Choose the type of radiation from Column 2 that best matches each item in Column 1.
-Two small nuclei combine to form a larger nucleus.

Accepted Answer

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

Question 17

The nuclear reaction shown below is an example of what type of process? 
224
90 Th ? 220
88 Rn + 4
2 He

Accepted Answer

A)  fusion 
B)  fission 
C)  translation 
D)  alpha emission 
E)  beta emission 
A)  fusion 
B)  fission 
C)  translation 
D)  alpha emission 
E)  beta emission

Question 18

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

Accepted Answer

A) beta particle 
B) neutron 
C) gamma ray 
D) positron 
E) proton
F)alpha particle 
A) beta particle 
B) neutron 
C) gamma ray 
D) positron 
E) proton
F)alpha particle

Question 19

A beta particle is emmited when Co-60 decays to Fe-60.

Accepted Answer

A) True 
 B)False

Question 20

A sample of technetium-99m has an activity of 1.5 Ci. How many disintegrations occur in the technetium-99m sample in 5.0 sec?

Accepted Answer

A)  5.6 × 1011 
B)  2.8 × 1011 
C)  1.1 × 1010 
D)  7.5 
E)  2.0 × 10-10 
A)  5.6 × 1011 
B)  2.8 × 1011 
C)  1.1 × 1010 
D)  7.5 
E)  2.0 × 10-10

Exam 4: Nuclear Chemistry

Indicate whether each of the following is characteristic of the fission or fusion process. -This nuclear process provides the energy of the Sun.

The nuclear reaction 126 50 Sn ? 126 51 Sb + ? is an example of

What is missing in the nuclear reaction shown below? 10 5 B + 4 2 He ? 13 7 N + _____

Nuclear fusion does not occur naturally.

Which is NOT a way to minimize your exposure to radiation?

The half-life of bromine-74 is 25 min. How much of a 4.0 mg sample is still active after 75 min?

Nitrogen-17 is a beta emitter. What is the isotope produced in the radioactive decay?

When a positron is emitted from the nucleus of an atom, the nuclear mass

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

Exposure to radiation is unavoidable because some radioactive elements occur naturally.

99 m99 \mathrm {~m}99 m 43 Tc → 99 43 Tc + __________

If the half-life of hydrogen-3 is 11.8 years, after two half-lives the radioactivity of a sample will be reduced to one-half of the original amount.

What is the radioactive particle released in the following nuclear equation? 159 74 W ? 155 72 Hf + ?

Gamma rays require the heaviest shielding of all the common types of nuclear radiation because gamma rays have the

Indicate whether each of the following is characteristic of the fission or fusion process. -A large nucleus is split into smaller nuclei.

Choose the type of radiation from Column 2 that best matches each item in Column 1. -Two small nuclei combine to form a larger nucleus.

The nuclear reaction shown below is an example of what type of process? 224 90 Th ? 220 88 Rn + 4 2 He

Choose the type of radiation from Column 2 that best matches each item in Column 1. -1 0 n

A beta particle is emmited when Co-60 decays to Fe-60.

A sample of technetium-99m has an activity of 1.5 Ci. How many disintegrations occur in the technetium-99m sample in 5.0 sec?

Chemistry and Measurements

Energy and Matter

Atoms and Elements

Compounds and Their Bonds

Chemical Reactions and Quantities

Gases

Solutions

Reaction Rates and Chemical Equilibrium

Acids and Bases

Introduction to Organic Chemistry: Alkanes

Alkenes, Alkynes, and Aromatic Compounds

Alcohols, Phenols, Thiols, and Ethers

Aldehydes, Ketones, and Chiral Molecules

Carbohydrates

Carboxylic Acids and Esters

Lipids

Amines and Amides

Amino Acids and Proteins

Enzymes and Vitamins

Nucleic Acids and Protein Synthesis

Metabolic Pathways for Carbohydrates

Metabolism and Energy Production

Metabolic Pathways for Lipids and Amino Acids

Filters

$99 \mathrm {~m}$ 43 Tc → 99 43 Tc + __________