Question 1

If the half-life of hydrogen-3 is 11.8 yr,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 2

A patient receives 10 mrad of gamma radiation.If the factor that adjusts for biological damage for for gamma radiation is 1,how many mrems did the patient receive?

Accepted Answer

A) 2 mrem 
B) 5 mrem 
C) 10 mrem 
D) 20 mrem 
E) 200 mrem 
A) 2 mrem 
B) 5 mrem 
C) 10 mrem 
D) 20 mrem 
E) 200 mrem

Question 3

The amount of radiation measured by 1 Bq is larger than that measured by 1 Ci.

Accepted Answer

A) True 
 B)False

Question 4

The common unit of radioactivity which is used to measure the biological damage is the ________.

Accepted Answer

The answer of The common unit of radioactivity which is...

Question 5

A sample of cerium-141 for a diagnostic test was dissolved in saline solution to an activity of 4.5 millicuries/mL.If the patient undergoing the test needs a dose of 10 millicuries,how much of the solution should be injected into the patient?

Accepted Answer

A) 45 mL 
B) .45 mL 
C) 2.2 mL 
D) 22 mL 
E) 4.5 mL 
A) 45 mL 
B) .45 mL 
C) 2.2 mL 
D) 22 mL 
E) 4.5 mL

Question 6

Krypton-79 has a half-life of 35 h.How many half-lives have passed after 105 h?

Accepted Answer

A) 1 half-life 
B) 2 half-lives 
C) 3 half-lives 
D) 4 half-lives 
E) 5 half-lives 
A) 1 half-life 
B) 2 half-lives 
C) 3 half-lives 
D) 4 half-lives 
E) 5 half-lives

Question 7

When an atom of uranium-235 is bombarded with neutrons,it splits into smaller nuclei and produces a great amount of energy.This nuclear process is called ________.

Accepted Answer

A) fission 
B) fusion 
C) decomposition 
D) chain reaction 
E) ionization 
A) fission 
B) fusion 
C) decomposition 
D) chain reaction 
E) ionization

Question 8

The nuclear reaction shown below is an example of what type of process?   Th →   Rn +   He

Accepted Answer

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

Question 9

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

Accepted Answer

A)    C 
B)    B 
C)    N 
D)    F 
E)    O 
A)    C 
B)    B 
C)    N 
D)    F 
E)    O

Question 10

U +   n → ________ +   Kr + 3   n + energy

Accepted Answer

The answer of   U +   n...

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

A patient receives 10 mrad of gamma radiation.If the factor that adjusts for biological damage for for gamma radiation is 1,how many mrems did the patient receive?

The amount of radiation measured by 1 Bq is larger than that measured by 1 Ci.

The common unit of radioactivity which is used to measure the biological damage is the ________.

A sample of cerium-141 for a diagnostic test was dissolved in saline solution to an activity of 4.5 millicuries/mL.If the patient undergoing the test needs a dose of 10 millicuries,how much of the solution should be injected into the patient?

Krypton-79 has a half-life of 35 h.How many half-lives have passed after 105 h?

When an atom of uranium-235 is bombarded with neutrons,it splits into smaller nuclei and produces a great amount of energy.This nuclear process is called ________.

The nuclear reaction shown below is an example of what type of process? Th → Rn + He

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

U + n → ________ + Kr + 3 n + energy

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Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, esters, amines, and Amides

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Exam 5: Nuclear Chemistry

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

A patient receives 10 mrad of gamma radiation.If the factor that adjusts for biological damage for for gamma radiation is 1,how many mrems did the patient receive?

The amount of radiation measured by 1 Bq is larger than that measured by 1 Ci.

The common unit of radioactivity which is used to measure the biological damage is the ________.

A sample of cerium-141 for a diagnostic test was dissolved in saline solution to an activity of 4.5 millicuries/mL.If the patient undergoing the test needs a dose of 10 millicuries,how much of the solution should be injected into the patient?

Krypton-79 has a half-life of 35 h.How many half-lives have passed after 105 h?

When an atom of uranium-235 is bombarded with neutrons,it splits into smaller nuclei and produces a great amount of energy.This nuclear process is called ________.

The nuclear reaction shown below is an example of what type of process? Th → Rn + He

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

U + n → ________ + Kr + 3 n + energy

Chemistry in Our Lives

Chemistry and Measurement

Matter and Energy

Atoms and Elements

Ionic and Molecular Compounds

Chemical Quantities and Reactions

Gases

Solutions

Acids and Bases and Equilibrium

Introduction to Organic Chemistry: Hydrocarbons

Alcohols, thiols, ethers, aldehydes, and Ketones

Carbohydrates

Carboxylic Acids, esters, amines, and Amides

Lipids

Amino Acids, proteins, and Enzymes

Nucleic Acids and Protein Synthesis

Metabolic Pathways and Energy Production

Filters