Question 1

Radioactivity is generally associated with which part of the atom?

Accepted Answer

A) nucleus 
B) electrons 
C) protons 
D) neutrons 
E) the entire atom 
A) nucleus 
B) electrons 
C) protons 
D) neutrons 
E) the entire atom

Question 2

What percentage of a radioactive sample remains after four half-lives have passed?

Accepted Answer

A) 0% 
B) 6.25% 
C) 12.5% 
D) 25% 
E) 50% 
A) 0% 
B) 6.25% 
C) 12.5% 
D) 25% 
E) 50%

Question 3

Which product is formed by gamma emission from technetium-99? The atomic number of technetium is 43.

Accepted Answer

A)   Nb 
B)   Nb 
C)   Ru 
D)   Tc 
E)   Tc 
A)   Nb 
B)   Nb 
C)   Ru 
D)   Tc 
E)   Tc

Question 4

A REM is a biological radiation measurement which is independent of the type of radiation.

Accepted Answer

A) True 
 B)False

Question 5

What is the missing reactant in the reaction shown? 
 Al + ________ →  P + N

Accepted Answer

A)   He 
B)   H 
C)   H 
D)   N 
E)   Β 
A)   He 
B)   H 
C)   H 
D)   N 
E)   Β

Question 6

Match the following.
-fusion

Accepted Answer

A) a unit of measurement of radiation based on the number of radioactive events per unit time 
B) atoms which undergo spontaneous nuclear decay 
C) a unit of measurement of radiation based on the amount of tissue damage;this unit accounts for the different energies of each type of radiation 
D) a unit of measurement of radiation based on the amount of energy absorbed by a specific mass of sample 
E) a unit of measurement of radiation based on the amount of ionization caused by the radiation
F)a succession of spontaneous nuclear decays,often resulting in an atom of lead as the final product
G)a nuclear reaction that continues on its own after initiation because the number of neutrons produced is greater than the number of neutrons consumed
H)a nuclear reaction in which a large nucleus is split into two fragments similar in size with additional small particles released
I)a general term which refers to particles found in the nucleus
J)atoms which do not undergo spontaneous nuclear decay
K)the joining of small nuclei into a larger nucleus 
A) a unit of measurement of radiation based on the number of radioactive events per unit time 
B) atoms which undergo spontaneous nuclear decay 
C) a unit of measurement of radiation based on the amount of tissue damage;this unit accounts for the different energies of each type of radiation 
D) a unit of measurement of radiation based on the amount of energy absorbed by a specific mass of sample 
E) a unit of measurement of radiation based on the amount of ionization caused by the radiation
F)a succession of spontaneous nuclear decays,often resulting in an atom of lead as the final product
G)a nuclear reaction that continues on its own after initiation because the number of neutrons produced is greater than the number of neutrons consumed
H)a nuclear reaction in which a large nucleus is split into two fragments similar in size with additional small particles released
I)a general term which refers to particles found in the nucleus
J)atoms which do not undergo spontaneous nuclear decay
K)the joining of small nuclei into a larger nucleus

Question 7

What is the missing reactant in the reaction shown?  Cl + ________ →  P +  He

Accepted Answer

A)   He 
B)   H 
C)   H 
D)   N 
E)   Β 
A)   He 
B)   H 
C)   H 
D)   N 
E)   Β

Question 8

The amount of radiation that produces 2.1 × 109 units of charge in 1 cm3 of air is the

Accepted Answer

A) curie. 
B) roentgen. 
C) rem. 
D) rad. 
E) sievert. 
A) curie. 
B) roentgen. 
C) rem. 
D) rad. 
E) sievert.

Question 9

The most important unit for biological doses of radiation is the

Accepted Answer

A) rem. 
B) rad. 
C) curie. 
D) bozon. 
E) roentgen. 
A) rem. 
B) rad. 
C) curie. 
D) bozon. 
E) roentgen.

Question 10

Diagnostic tracers form hot spots when they are prevented from entering diseased tissue.

Accepted Answer

A) True 
 B)False

Question 11

Which product is formed by gamma emission from niobium-94? The atomic number of niobium is 41.

Accepted Answer

A)   Y 
B)   Nb 
C)   Tc 
D)   Mo 
E)   Zr 
A)   Y 
B)   Nb 
C)   Tc 
D)   Mo 
E)   Zr

Question 12

Which of the following is not an example of ionizing radiation?

Accepted Answer

A) X-rays 
B) gamma rays 
C) beta particles 
D) alpha particles 
E) infrared rays 
A) X-rays 
B) gamma rays 
C) beta particles 
D) alpha particles 
E) infrared rays

Question 13

Approximately how old is a fossil that contains 3.13% of its original carbon-14? The half-life of carbon-14 is 5730 years.

Accepted Answer

A) 2870 years 
B) 5730 years 
C) 11,500 years 
D) 22,900 years 
E) 28,700 years 
A) 2870 years 
B) 5730 years 
C) 11,500 years 
D) 22,900 years 
E) 28,700 years

Question 14

Write a balanced nuclear equation for a)positron emission of a calcium-38 isotope;b)formation of copper-62 by electron capture.

Accepted Answer

@#IMG-DLM& 
Ca → @#IMG-DLM& 
β

Question 15

Match the following.
-unstable isotopes

Accepted Answer

A) a unit of measurement of radiation based on the number of radioactive events per unit time 
B) atoms which undergo spontaneous nuclear decay 
C) a unit of measurement of radiation based on the amount of tissue damage;this unit accounts for the different energies of each type of radiation 
D) a unit of measurement of radiation based on the amount of energy absorbed by a specific mass of sample 
E) a unit of measurement of radiation based on the amount of ionization caused by the radiation
F)a succession of spontaneous nuclear decays,often resulting in an atom of lead as the final product
G)a nuclear reaction that continues on its own after initiation because the number of neutrons produced is greater than the number of neutrons consumed
H)a nuclear reaction in which a large nucleus is split into two fragments similar in size with additional small particles released
I)a general term which refers to particles found in the nucleus
J)atoms which do not undergo spontaneous nuclear decay
K)the joining of small nuclei into a larger nucleus 
A) a unit of measurement of radiation based on the number of radioactive events per unit time 
B) atoms which undergo spontaneous nuclear decay 
C) a unit of measurement of radiation based on the amount of tissue damage;this unit accounts for the different energies of each type of radiation 
D) a unit of measurement of radiation based on the amount of energy absorbed by a specific mass of sample 
E) a unit of measurement of radiation based on the amount of ionization caused by the radiation
F)a succession of spontaneous nuclear decays,often resulting in an atom of lead as the final product
G)a nuclear reaction that continues on its own after initiation because the number of neutrons produced is greater than the number of neutrons consumed
H)a nuclear reaction in which a large nucleus is split into two fragments similar in size with additional small particles released
I)a general term which refers to particles found in the nucleus
J)atoms which do not undergo spontaneous nuclear decay
K)the joining of small nuclei into a larger nucleus

Question 16

Which reaction is an example of a neutron bombardment?

Accepted Answer

A)   Cm → Pu + He 
B)   Cm + He → Cf + N 
C)   U + N → Te + Zr +  N 
D)   Ti → V + Β 
E)   Sc → Sc + energy 
A)   Cm → Pu + He 
B)   Cm + He → Cf + N 
C)   U + N → Te + Zr +  N 
D)   Ti → V + Β 
E)   Sc → Sc + energy

Question 17

If a technician is ordered to deliver 30.units of radiation to a patient,at what distance should the source be if it delivers 85 units for a distance of 3.5 m?

Accepted Answer

A) 9.3 m 
B) 1.3 m 
C) 35 m 
D) 4.3 m 
E) 3.15 m 
A) 9.3 m 
B) 1.3 m 
C) 35 m 
D) 4.3 m 
E) 3.15 m

Question 18

A gray is

Accepted Answer

A) the amount of radiation that produces 2.1 × 109 units of charge in one cubic centimeter of air. 
B) a unit used to measure the amount of radiation absorbed per gram of tissue. 
C) a unit that measures both the energy and the penetrating power of different types of radiation. 
D) the SI unit for radiation absorbed. 
E) the amount of radioactive substance that undergoes 3.7 × 1010 disintegrations per second. 
A) the amount of radiation that produces 2.1 × 109 units of charge in one cubic centimeter of air. 
B) a unit used to measure the amount of radiation absorbed per gram of tissue. 
C) a unit that measures both the energy and the penetrating power of different types of radiation. 
D) the SI unit for radiation absorbed. 
E) the amount of radioactive substance that undergoes 3.7 × 1010 disintegrations per second.

Question 19

Match the following.
-rad

Accepted Answer

A) a unit of measurement of radiation based on the number of radioactive events per unit time 
B) atoms which undergo spontaneous nuclear decay 
C) a unit of measurement of radiation based on the amount of tissue damage;this unit accounts for the different energies of each type of radiation 
D) a unit of measurement of radiation based on the amount of energy absorbed by a specific mass of sample 
E) a unit of measurement of radiation based on the amount of ionization caused by the radiation
F)a succession of spontaneous nuclear decays,often resulting in an atom of lead as the final product
G)a nuclear reaction that continues on its own after initiation because the number of neutrons produced is greater than the number of neutrons consumed
H)a nuclear reaction in which a large nucleus is split into two fragments similar in size with additional small particles released
I)a general term which refers to particles found in the nucleus
J)atoms which do not undergo spontaneous nuclear decay
K)the joining of small nuclei into a larger nucleus 
A) a unit of measurement of radiation based on the number of radioactive events per unit time 
B) atoms which undergo spontaneous nuclear decay 
C) a unit of measurement of radiation based on the amount of tissue damage;this unit accounts for the different energies of each type of radiation 
D) a unit of measurement of radiation based on the amount of energy absorbed by a specific mass of sample 
E) a unit of measurement of radiation based on the amount of ionization caused by the radiation
F)a succession of spontaneous nuclear decays,often resulting in an atom of lead as the final product
G)a nuclear reaction that continues on its own after initiation because the number of neutrons produced is greater than the number of neutrons consumed
H)a nuclear reaction in which a large nucleus is split into two fragments similar in size with additional small particles released
I)a general term which refers to particles found in the nucleus
J)atoms which do not undergo spontaneous nuclear decay
K)the joining of small nuclei into a larger nucleus

Question 20

The amount of a radioactive substance that undergoes 3.7 × 1010 disintegrations per second is known as a

Accepted Answer

A) curie. 
B) roentgen. 
C) rem. 
D) rad. 
E) sievert. 
A) curie. 
B) roentgen. 
C) rem. 
D) rad. 
E) sievert.

Exam 11: Nuclear Chemistry

Radioactivity is generally associated with which part of the atom?

What percentage of a radioactive sample remains after four half-lives have passed?

Which product is formed by gamma emission from technetium-99? The atomic number of technetium is 43.

A REM is a biological radiation measurement which is independent of the type of radiation.

What is the missing reactant in the reaction shown? Al + ________ → P +N

Match the following. -fusion

What is the missing reactant in the reaction shown? Cl + ________ → P + He

The amount of radiation that produces 2.1 × 109 units of charge in 1 cm3 of air is the

The most important unit for biological doses of radiation is the

Diagnostic tracers form hot spots when they are prevented from entering diseased tissue.

Which product is formed by gamma emission from niobium-94? The atomic number of niobium is 41.

Which of the following is not an example of ionizing radiation?

Approximately how old is a fossil that contains 3.13% of its original carbon-14? The half-life of carbon-14 is 5730 years.

Write a balanced nuclear equation for a)positron emission of a calcium-38 isotope;b)formation of copper-62 by electron capture.

Match the following. -unstable isotopes

Which reaction is an example of a neutron bombardment?

If a technician is ordered to deliver 30.units of radiation to a patient,at what distance should the source be if it delivers 85 units for a distance of 3.5 m?

A gray is

Match the following. -rad

The amount of a radioactive substance that undergoes 3.7 × 1010 disintegrations per second is known as a

Matter and Measurements

Atoms and the Periodic Table

Ionic Compounds

Molecular Compounds

Classification and Balancing of Chemical Reactions

Chemical Reactions: Mole and Mass Relationships

Chemical Reactions: Energy, rates, and Equilibrium

Gases, liquids, and Solids

Solutions

Acids and Bases

Introduction to Organic Chemistry: Alkanes

Alkenes, alkynes, and Aromatic Compounds

Some Compounds With Oxygen, sulfur, or a Halogen

Aldehydes and Ketones

Amines

Carboxylic Acids and Their Derivatives

Amino Acids and Proteins

Enzymes and Vitamins

Carbohydrates

The Generation of Biochemical Energy

Carbohydrate Metabolism

Lipids

Lipid Metabolism

Protein and Amino Acid Metabolism

Nucleic Acids and Protein Synthesis

Genomics

Chemical Messengers: Hormones, neurotransmitters, and Drugs

Body Fluids

Filters

The amount of radiation that produces 2.1 × 10⁹ units of charge in 1 cm³ of air is the

The amount of a radioactive substance that undergoes 3.7 × 10¹⁰ disintegrations per second is known as a