Question 1

Which of the following radioactive emissions leads to transmutation in radioactive isotopes?

Accepted Answer

A)  β emission 
B)  γ emission 
C)  both of these 
D)  none of these 
A)  β emission 
B)  γ emission 
C)  both of these 
D)  none of these

Question 2

Which of the following is a measure of the effect of radiation on biological material?

Accepted Answer

A)  the curie 
B)  the gray 
C)  the rad 
D)  the sievert 
A)  the curie 
B)  the gray 
C)  the rad 
D)  the sievert

Question 3

Which part of the atom is radioactivity associated with?

Accepted Answer

A)  the core electrons 
B)  the entire atom 
C)  the nucleus 
D)  the valence electrons 
A)  the core electrons 
B)  the entire atom 
C)  the nucleus 
D)  the valence electrons

Question 4

Which of the following types of radiation can be stopped by ordinary clothing?

Accepted Answer

A)  α 
B)  β 
C)  γ 
D)  all of these 
A)  α 
B)  β 
C)  γ 
D)  all of these

Question 5

Which type of radiation emitted by C-14 has a half-life of 5730 years?

Accepted Answer

A)  beta radiation 
B)  alpha radiation 
C)  gamma radiation 
D)  positron radiation 
A)  beta radiation 
B)  alpha radiation 
C)  gamma radiation 
D)  positron radiation

Question 6

From which of the following sources do humans receive the most radiation exposure?

Accepted Answer

A)  artificial radiation sources 
B)  atmospheric radon 
C)  cosmic rays 
D)  nuclear power plants 
A)  artificial radiation sources 
B)  atmospheric radon 
C)  cosmic rays 
D)  nuclear power plants

Question 7

What happens to the atomic number of an element when an α particle is emitted from its nucleus?

Accepted Answer

A)  The atomic number increases. 
B)  The atomic number decreases. 
C)  The atomic number does not change. 
A)  The atomic number increases. 
B)  The atomic number decreases. 
C)  The atomic number does not change.

Question 8

A radioisotope with atomic number Z emits an α particle. Identify the atomic number of the radioisotope formed by the α emission.

Accepted Answer

A)  Z − 2 
B)  Z + 4 
C)  Z − 4 
D)  Z + 2 
A)  Z − 2 
B)  Z + 4 
C)  Z − 4 
D)  Z + 2

Question 9

Which of the following rays are the most penetrating?

Accepted Answer

A)  α rays 
B)  β rays 
C)  γ rays 
D)  β+ rays 
A)  α rays 
B)  β rays 
C)  γ rays 
D)  β+ rays

Question 10

The half-life of iodine-131 is 8 days. If a medical treatment involves a dose of 100. mg of iodine-131, how much of the isotope remains after 16 days?

Accepted Answer

A)  12.5 mg 
B)  25 mg 
C)  50.5 mg 
D)  75 mg 
A)  12.5 mg 
B)  25 mg 
C)  50.5 mg 
D)  75 mg

Question 11

Which of the following terms refers to a packet of electromagnetic radiation?

Accepted Answer

A)  proton 
B)  electron 
C)  neutron 
D)  photon 
A)  proton 
B)  electron 
C)  neutron 
D)  photon

Question 12

Which free radical is formed in tissues by the interaction of water with high-energy radiation?

Accepted Answer

A)  hydronium 
B)  hydroxide 
C)  hydrogen 
D)  hydroxyl 
A)  hydronium 
B)  hydroxide 
C)  hydrogen 
D)  hydroxyl

Question 13

Which property of a radioactive element is exploited to detect radioactivity?

Accepted Answer

A)  its charge 
B)  its ionizing ability 
C)  its mass 
D)  all of these 
A)  its charge 
B)  its ionizing ability 
C)  its mass 
D)  all of these

Question 14

Which of the following is most resistant to damage by exposure to radiation?

Accepted Answer

A)  bacteria 
B)  human tissue 
C)  viruses 
D)  They are all equally easily damaged. 
A)  bacteria 
B)  human tissue 
C)  viruses 
D)  They are all equally easily damaged.

Question 15

Which of the following rays have the heaviest particles?

Accepted Answer

A)  α rays 
B)  β rays 
C)  γ rays 
D)  β+ rays 
A)  α rays 
B)  β rays 
C)  γ rays 
D)  β+ rays

Question 16

Which of the following is the correct relationship between the units rad and gray?

Accepted Answer

A)  1 Gy = 100 rad 
B)  1 Gy = 1000 rad 
C)  1 Gy = 0.01 rad 
D)  1 Gy = 0.001 rad 
A)  1 Gy = 100 rad 
B)  1 Gy = 1000 rad 
C)  1 Gy = 0.01 rad 
D)  1 Gy = 0.001 rad

Question 17

Which of the following elements was named after Glenn Seaborg?

Accepted Answer

A)  element 100 
B)  element 106 
C)  element 108 
D)  element 110 
A)  element 100 
B)  element 106 
C)  element 108 
D)  element 110

Question 18

Consider the following image.   Which of the following is characteristic of the reaction shown in the image?

Accepted Answer

A)  It is an endothermic reaction. 
B)  It is controlled by neutron absorption. 
C)  It produces little or no waste. 
D)  All of these characterize the reaction. 
A)  It is an endothermic reaction. 
B)  It is controlled by neutron absorption. 
C)  It produces little or no waste. 
D)  All of these characterize the reaction.

Question 19

Which unit is a measure of the effect of radiation when a person absorbs 1 roentgen?

Accepted Answer

A)  the curie 
B)  the rad 
C)  the rem 
D)  none of these 
A)  the curie 
B)  the rad 
C)  the rem 
D)  none of these

Question 20

Which of the following radioisotopes is used to scan for bone diseases?

Accepted Answer

A)  C-14 
B)  F-18 
C)  Sr-81 
D)  I-131 
A)  C-14 
B)  F-18 
C)  Sr-81 
D)  I-131

Exam 9: Nuclear Chemistry

Which of the following radioactive emissions leads to transmutation in radioactive isotopes?

Which of the following is a measure of the effect of radiation on biological material?

Which part of the atom is radioactivity associated with?

Which of the following types of radiation can be stopped by ordinary clothing?

Which type of radiation emitted by C-14 has a half-life of 5730 years?

From which of the following sources do humans receive the most radiation exposure?

What happens to the atomic number of an element when an α particle is emitted from its nucleus?

A radioisotope with atomic number Z emits an α particle. Identify the atomic number of the radioisotope formed by the α emission.

Which of the following rays are the most penetrating?

The half-life of iodine-131 is 8 days. If a medical treatment involves a dose of 100. mg of iodine-131, how much of the isotope remains after 16 days?

Which of the following terms refers to a packet of electromagnetic radiation?

Which free radical is formed in tissues by the interaction of water with high-energy radiation?

Which property of a radioactive element is exploited to detect radioactivity?

Which of the following is most resistant to damage by exposure to radiation?

Which of the following rays have the heaviest particles?

Which of the following is the correct relationship between the units rad and gray?

Which of the following elements was named after Glenn Seaborg?

Consider the following image. Which of the following is characteristic of the reaction shown in the image?

Which unit is a measure of the effect of radiation when a person absorbs 1 roentgen?

Which of the following radioisotopes is used to scan for bone diseases?

Matter, Energy, and Measurement

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Reaction Rates and Chemical Equilibrium

Acids and Bases

Organic Chemistry

Alkanes

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Alcohols, Ethers, and Thiols

Chirality: the Handedness of Molecules

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Carboxylic Anhydrides, Esters, and Amides

Carbohydrates

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Chemical Communications: Neurotransmitters and Hormones

Nucleotides, Nucleic Acids, and Heredity

Gene Expression and Protein Synthesis

Bioenergetics: How the Body Converts Food to Energy

Specific Catabolic Pathways: Carbohydrate, Lipid, and Protein Metabolism

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