Question 1

What is the charge of an alpha particle?

Accepted Answer

A) 0 
B) -1 
C) 1 
D) 2 
E) 4 
A) 0 
B) -1 
C) 1 
D) 2 
E) 4

Question 2

Beta particles are a form of electromagnetic energy.

Accepted Answer

A) True 
 B)False

Question 3

Americium-241 is a radioactive isotope used in smoke detectors.If the symbol for this isotope is 241
95 Am,which of the following correctly describes its subatomic composition?

Accepted Answer

A) 241 protons,241 electrons,95 neutrons 
B) 95 neutrons,241 protons,146 electrons 
C) 95 protons,95 electrons,51 neutrons 
D) 146 neutrons,95 protons,51 electrons 
E) 95 protons,95 electrons,146 neutrons 
A) 241 protons,241 electrons,95 neutrons 
B) 95 neutrons,241 protons,146 electrons 
C) 95 protons,95 electrons,51 neutrons 
D) 146 neutrons,95 protons,51 electrons 
E) 95 protons,95 electrons,146 neutrons

Question 4

The isotope 63
28 Ni decays to 63
29 Cu by emitting radiation.What type of radiation is emitted?

Accepted Answer

A) alpha 
B) beta 
C) gamma 
D) positron 
E) None of the choices are correct. 
A) alpha 
B) beta 
C) gamma 
D) positron 
E) None of the choices are correct.

Question 5

Why do radiation workers wear a film badge?

Accepted Answer

A) to measure their cumulative level of exposure to radiation 
B) to measure the amount of time they spend in close proximity to radiation 
C) to monitor the different types of radiation to which they are being exposed 
D) to measure the radioactivity in their blood 
E) to quickly determine the amount of radiation given off by a piece of radioactive material with which they are working 
A) to measure their cumulative level of exposure to radiation 
B) to measure the amount of time they spend in close proximity to radiation 
C) to monitor the different types of radiation to which they are being exposed 
D) to measure the radioactivity in their blood 
E) to quickly determine the amount of radiation given off by a piece of radioactive material with which they are working

Question 6

Which of the following is not a method used for detecting radiation?

Accepted Answer

A) Geiger counter 
B) photographic imaging 
C) film badges 
D) computer imaging 
E) radiocarbon dating 
A) Geiger counter 
B) photographic imaging 
C) film badges 
D) computer imaging 
E) radiocarbon dating

Question 7

The term LD50 means the dose of toxic material that will be needed to kill 50% of the exposed population within 30 days.

Accepted Answer

A) True 
 B)False

Question 8

What information is conveyed by the "m" in 99mTc?

Accepted Answer

A) The mass of the isotope is 99. 
B) The isotope is metastable. 
C) The isotope is man-made. 
D) There are multiple isotopes for this element. 
E) This is the most abundant isotope for this element. 
A) The mass of the isotope is 99. 
B) The isotope is metastable. 
C) The isotope is man-made. 
D) There are multiple isotopes for this element. 
E) This is the most abundant isotope for this element.

Question 9

Which nuclear particle is identical to an He2+ ion?

Accepted Answer

A) alpha 
B) beta 
C) gamma 
D) proton 
E) electron 
A) alpha 
B) beta 
C) gamma 
D) proton 
E) electron

Question 10

The isotope $\begin{array} { c } 
226 \
88
\end{array}$ Ra decays to $\begin{array} { c } 
222 \
86
\end{array}$ Rn by emitting radiation.What type of radiation is emitted?

Accepted Answer

A) alpha 
B) beta 
C) gamma 
D) positron 
E) None of the choices are correct. 
A) alpha 
B) beta 
C) gamma 
D) positron 
E) None of the choices are correct.

Question 11

When the isotope $214$
83 Bi undergoes beta decay,what isotope is formed?

Accepted Answer

A)  215
84 Po 
B)  $212$
79 Au 
C)  $214$
84 Po 
D)  210
81 Ti 
E)  $214 \mathrm {~m}$
83 Bi 
A)  215
84 Po 
B)  $212$
79 Au 
C)  $214$
84 Po 
D)  210
81 Ti 
E)  $214 \mathrm {~m}$
83 Bi

Question 12

What is the process responsible for energy production in the sun?

Accepted Answer

A) chemical combustion 
B) fission oxidation-reduction 
C) decomposition 
D) fission 
E) fusion 
A) chemical combustion 
B) fission oxidation-reduction 
C) decomposition 
D) fission 
E) fusion

Question 13

What particle or nucleus X is needed to complete the following equation? 
40
19 K ? $$0$$
$- 1$ e + X

Accepted Answer

A) argon-20 
B) calcium-20 
C) argon-18 
D) potassium-40 
E) calcium-40 
A) argon-20 
B) calcium-20 
C) argon-18 
D) potassium-40 
E) calcium-40

Question 14

When a molecule is hit by gamma radiation,which of the following is likely to occur?

Accepted Answer

A) increase in mass 
B) decrease in mass 
C) ionization 
D) swelling 
E) replication 
A) increase in mass 
B) decrease in mass 
C) ionization 
D) swelling 
E) replication

Question 15

What nuclear process is used in commercial nuclear power plants to produce energy?

Accepted Answer

A) fusion 
B) fission 
C) metastable induction 
D) radiocarbon dating 
E) positron emission tomography 
A) fusion 
B) fission 
C) metastable induction 
D) radiocarbon dating 
E) positron emission tomography

Question 16

What is the name given to the energy that is responsible for holding the protons and neutrons together in the nucleus?

Accepted Answer

A) nuclear energy 
B) kinetic energy 
C) static energy 
D) binding energy 
E) activation energy 
A) nuclear energy 
B) kinetic energy 
C) static energy 
D) binding energy 
E) activation energy

Question 17

The half-life of tritium ( 3
1 H)is 12 years.How long does it take for 16.0 ng of tritium to decay to the point where 2.0 ng remains?

Accepted Answer

A) 12 years 
B) 24 years 
C) 36 years 
D) 48 years 
E) 52 years 
A) 12 years 
B) 24 years 
C) 36 years 
D) 48 years 
E) 52 years

Question 18

A high degree of stability is predicted for nuclei with which of the following characteristics?

Accepted Answer

A) high neutron/proton ratio (>2) 
B) more protons than neutrons 
C) even number of protons or neutrons 
D) odd number of protons 
E) large number of protons (84 or more) 
A) high neutron/proton ratio (>2) 
B) more protons than neutrons 
C) even number of protons or neutrons 
D) odd number of protons 
E) large number of protons (84 or more)

Question 19

Which type of radiation emitted by radioactive nuclei is similar in mass to a helium atom?

Accepted Answer

A) alpha 
B) beta 
C) gamma 
D) delta 
E) positron 
A) alpha 
B) beta 
C) gamma 
D) delta 
E) positron

Question 20

How many half-lives are needed for a 400.0 ng sample of a radioactive isotope to decay to 12.5 ng?

Accepted Answer

A) 4 
B) 5 
C) 10 
D) 16 
E) 32 
A) 4 
B) 5 
C) 10 
D) 16 
E) 32

Exam 9: The Nucleus, radioactivity, and Nuclear Medicine

What is the charge of an alpha particle?

Beta particles are a form of electromagnetic energy.

Americium-241 is a radioactive isotope used in smoke detectors.If the symbol for this isotope is 241 95 Am,which of the following correctly describes its subatomic composition?

The isotope 63 28 Ni decays to 63 29 Cu by emitting radiation.What type of radiation is emitted?

Why do radiation workers wear a film badge?

Which of the following is not a method used for detecting radiation?

The term LD50 means the dose of toxic material that will be needed to kill 50% of the exposed population within 30 days.

What information is conveyed by the "m" in 99mTc?

Which nuclear particle is identical to an He2+ ion?

The isotope 226 88 Ra decays to 222 86 Rn by emitting radiation.What type of radiation is emitted?

When the isotope 214214214 83 Bi undergoes beta decay,what isotope is formed?

What is the process responsible for energy production in the sun?

What particle or nucleus X is needed to complete the following equation? 40 19 K ? 000 −1- 1−1 e + X

When a molecule is hit by gamma radiation,which of the following is likely to occur?

What nuclear process is used in commercial nuclear power plants to produce energy?

What is the name given to the energy that is responsible for holding the protons and neutrons together in the nucleus?

The half-life of tritium ( 3 1 H)is 12 years.How long does it take for 16.0 ng of tritium to decay to the point where 2.0 ng remains?

A high degree of stability is predicted for nuclei with which of the following characteristics?

Which type of radiation emitted by radioactive nuclei is similar in mass to a helium atom?

How many half-lives are needed for a 400.0 ng sample of a radioactive isotope to decay to 12.5 ng?

Chemistry - Methods and Measurement

The Structure of the Atom and the Periodic Table

Structure and Properties of Ionic and Covalent Compounds

Calculations, chemical Changes, and the Chemical Equation

States of Matter: Gases, liquids, and Solids

Solutions

Energy,rate and Equilibrium

Acids and Bases

An Introduction to Organic Chemistry

The Unsaturated Hydrocarbons: Alkenes, alkynes, and Aromatics

Alcohols, phenols, thiols, and Ethers

Aldehydes and Ketones

Carboxylic Acids and Carboxylic Acid Derivatives

Amines and Amides

Carbohydrates

Lipids and Their Functions in Biochemical Systems

Protein Structure and Function

Enzymes

Introduction to Molecular Genetics

Carbohydrate Metabolism

Aerobic Respiration and Energy Production

Fatty Acid Metabolism

Filters

The term LD₅₀ means the dose of toxic material that will be needed to kill 50% of the exposed population within 30 days.

What information is conveyed by the "m" in ^99mTc?

Which nuclear particle is identical to an He²⁺ ion?

When the isotope $214$ 83 Bi undergoes beta decay,what isotope is formed?

What particle or nucleus X is needed to complete the following equation? 40 19 K ? $0$ $- 1$ e + X