Question 1

Which reaction illustrates artificial transmutation by alpha bombardment?

Accepted Answer

A)   U → He + Th 
B)   Se → Β + Br 
C)   I → I + energy 
D)   U + N → Ba + Kr +  N 
E)   N + He → O + H 
A)   U → He + Th 
B)   Se → Β + Br 
C)   I → I + energy 
D)   U + N → Ba + Kr +  N 
E)   N + He → O + H

Question 2

The major source of radiation exposure for the general population is

Accepted Answer

A) medical sources. 
B) nuclear power plants. 
C) industrial activities. 
D) radon in homes. 
E) space. 
A) medical sources. 
B) nuclear power plants. 
C) industrial activities. 
D) radon in homes. 
E) space.

Question 3

The SI unit for the energy absorbed is

Accepted Answer

A) becquerel. 
B) gray. 
C) rad. 
D) sivert. 
E) rem. 
A) becquerel. 
B) gray. 
C) rad. 
D) sivert. 
E) rem.

Question 4

Which is the best description of gamma radiation?

Accepted Answer

A) charge +2;mass of 4 amu;high penetrating power 
B) charge +2;mass of 4 amu;low penetrating power 
C) charge -1;mass of 0 amu;medium penetrating power 
D) charge -1;mass of 0 amu;high penetrating power 
E) charge 0;mass of 0 amu;high penetrating power 
A) charge +2;mass of 4 amu;high penetrating power 
B) charge +2;mass of 4 amu;low penetrating power 
C) charge -1;mass of 0 amu;medium penetrating power 
D) charge -1;mass of 0 amu;high penetrating power 
E) charge 0;mass of 0 amu;high penetrating power

Question 5

When an atom loses an alpha particle,

Accepted Answer

A) its atomic number decreases by 2 units and its mass number decreases by 4 units. 
B) its atomic number increases by 1 unit but its mass number remains unchanged. 
C) its mass number decreases by 1 unit but its atomic number remains unchanged. 
D) neither its atomic number nor its mass number changes. 
E) its atomic number increases by 2 units and its mass number increases by 4 units. 
A) its atomic number decreases by 2 units and its mass number decreases by 4 units. 
B) its atomic number increases by 1 unit but its mass number remains unchanged. 
C) its mass number decreases by 1 unit but its atomic number remains unchanged. 
D) neither its atomic number nor its mass number changes. 
E) its atomic number increases by 2 units and its mass number increases by 4 units.

Question 6

Match the following.
-curie

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

Which of the following isotopes can be used to monitor spleen function?

Accepted Answer

A) .99Tc 
B) .14C 
C) .3H 
D) .131I 
E) .60Co 
A) .99Tc 
B) .14C 
C) .3H 
D) .131I 
E) .60Co

Question 8

The fusion reaction that supplies the energy of the sun is

Accepted Answer

A)   H + H→  He + N. 
B)   U + N → Ba + Kr +  N. 
C)   N + N → C + H. 
D)   C → N + Β. 
A)   H + H→  He + N. 
B)   U + N → Ba + Kr +  N. 
C)   N + N → C + H. 
D)   C → N + Β.

Question 9

If 75.0 mg of potassium-42 was administered to a patient at 10 AM on Monday,how many mg will remain at 10 AM on Thursday of that same week? The half life of K-42 is 12 hours.

Accepted Answer

A) 37.5 mg 
B) 1.17 mg 
C) 18.8 mg 
D) 9.38 mg 
A) 37.5 mg 
B) 1.17 mg 
C) 18.8 mg 
D) 9.38 mg

Question 10

List and discuss two criteria used to choose appropriate radioisotopes for use as tracers in medical imaging procedures.

Accepted Answer

One criterion is that they have a relati

Question 11

The half-life of sodium-24 is 15.0 hours.What percentage of a sample of sodium-24 remains after 75.0 hours?

Accepted Answer

A) 0.00% 
B) 3.13% 
C) 6.25% 
D) 12.5% 
E) 25.0% 
A) 0.00% 
B) 3.13% 
C) 6.25% 
D) 12.5% 
E) 25.0%

Question 12

Match the following.
-roentgen

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 13

Which of the following is an example of a subatomic particle?

Accepted Answer

A) electron 
B) proton 
C) neutron 
D) none of these 
E) all of these 
A) electron 
B) proton 
C) neutron 
D) none of these 
E) all of these

Question 14

How many neutrons will be produced in the reaction shown?  Cm +  C → No +________  N

Accepted Answer

A) 1 
B) 2 
C) 3 
D) 4 
E) cannot be determined 
A) 1 
B) 2 
C) 3 
D) 4 
E) cannot be determined

Question 15

Electron capture involves the conversion of a proton to a neutron by

Accepted Answer

A) emitting an electron. 
B) seizing an inner shell electron. 
C) seizing an outer shell electron. 
D) obtaining a gamma particle. 
E) obtaining an electron from a p orbital. 
A) emitting an electron. 
B) seizing an inner shell electron. 
C) seizing an outer shell electron. 
D) obtaining a gamma particle. 
E) obtaining an electron from a p orbital.

Question 16

Ionizing radiation is dangerous to living things because

Accepted Answer

A) it causes nuclear reactions. 
B) it causes thermal burns. 
C) it alters the chemical structure of atoms or molecules. 
D) it causes electrons to be captured by the nucleus. 
E) its penetrating power varies with its source. 
A) it causes nuclear reactions. 
B) it causes thermal burns. 
C) it alters the chemical structure of atoms or molecules. 
D) it causes electrons to be captured by the nucleus. 
E) its penetrating power varies with its source.

Question 17

Which nuclear reaction is an example of electron capture?

Accepted Answer

A)   Pu + He → Cm 
B)   Na → Ne + Β 
C)   Cm → Pu + He 
D)   Ar + Β → Cl 
E)   Ni → Cu + Β 
A)   Pu + He → Cm 
B)   Na → Ne + Β 
C)   Cm → Pu + He 
D)   Ar + Β → Cl 
E)   Ni → Cu + Β

Question 18

Match the following.
-stable 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 19

Ionizing radiation is

Accepted Answer

A) radiation that only interacts with ions. 
B) the same as a proton. 
C) a neutron that has acquired a charge,thus forming an ion. 
D) high-energy radiation that removes electrons from atoms or molecules. 
E) given off by ions and reacts with nuclei. 
A) radiation that only interacts with ions. 
B) the same as a proton. 
C) a neutron that has acquired a charge,thus forming an ion. 
D) high-energy radiation that removes electrons from atoms or molecules. 
E) given off by ions and reacts with nuclei.

Question 20

An unstable isotope generally has

Accepted Answer

A) low neutron to proton ratio. 
B) high neutron to proton ratio. 
C) equal number of protons and neutrons. 
D) equal number of protons and electrons. 
E) change in the charge of the nucleus. 
A) low neutron to proton ratio. 
B) high neutron to proton ratio. 
C) equal number of protons and neutrons. 
D) equal number of protons and electrons. 
E) change in the charge of the nucleus.

Exam 11: Nuclear Chemistry

Which reaction illustrates artificial transmutation by alpha bombardment?

The major source of radiation exposure for the general population is

The SI unit for the energy absorbed is

Which is the best description of gamma radiation?

When an atom loses an alpha particle,

Match the following. -curie

Which of the following isotopes can be used to monitor spleen function?

The fusion reaction that supplies the energy of the sun is

If 75.0 mg of potassium-42 was administered to a patient at 10 AM on Monday,how many mg will remain at 10 AM on Thursday of that same week? The half life of K-42 is 12 hours.

List and discuss two criteria used to choose appropriate radioisotopes for use as tracers in medical imaging procedures.

The half-life of sodium-24 is 15.0 hours.What percentage of a sample of sodium-24 remains after 75.0 hours?

Match the following. -roentgen

Which of the following is an example of a subatomic particle?

How many neutrons will be produced in the reaction shown? Cm + C →No +________ N

Electron capture involves the conversion of a proton to a neutron by

Ionizing radiation is dangerous to living things because

Which nuclear reaction is an example of electron capture?

Match the following. -stable isotopes

Ionizing radiation is

An unstable isotope generally has

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

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