Question 1

There are ________ microcuries in one millicurie.

Accepted Answer

The answer of There are ________ microcuries in one millicurie....

Question 2

In the sun,nuclei of hydrogen combine to form a larger nucleus and release a great amount of energy.The process is known as ________.

Accepted Answer

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

Question 3

In the nuclear equation of beta decay,________.

Accepted Answer

A) the new nucleus contains 2 fewer protons 
B) the new nucleus contains 2 more protons 
C) the mass number of the new nucleus is 4 less than that of the original nucleus 
D) the new nucleus contains 1 more proton 
E) the new nucleus contains 1 less proton 
A) the new nucleus contains 2 fewer protons 
B) the new nucleus contains 2 more protons 
C) the mass number of the new nucleus is 4 less than that of the original nucleus 
D) the new nucleus contains 1 more proton 
E) the new nucleus contains 1 less proton

Question 4

CT scans are based on the adsorption of X-rays.

Accepted Answer

A) True 
 B)False

Question 5

One symptom of radiation sickness is an increased production of red blood cells.

Accepted Answer

A) True 
 B)False

Question 6

One symbol for the beta particle is β.Another symbol for the same particle is ________.

Accepted Answer

The answer of One symbol for the beta particle is...

Question 7

One mCi of a radioactive substance emits more radiation than one μCi of the same substance.

Accepted Answer

A) True 
 B)False

Question 8

The half-life of a radioisotope is ________.

Accepted Answer

A) one-half of the time it takes for the radioisotope to completely decay to a nonradioactive isotope 
B) the time it takes for the radioisotope to become an isotope with one-half of the atomic weight of the original radioisotope 
C) the time it takes for the radioisotope to become an isotope with one-half the atomic number of the original radioisotope 
D) the time it takes for the radioisotope to lose one-half of its neutrons 
E) the time it takes for one-half of the sample to decay 
A) one-half of the time it takes for the radioisotope to completely decay to a nonradioactive isotope 
B) the time it takes for the radioisotope to become an isotope with one-half of the atomic weight of the original radioisotope 
C) the time it takes for the radioisotope to become an isotope with one-half the atomic number of the original radioisotope 
D) the time it takes for the radioisotope to lose one-half of its neutrons 
E) the time it takes for one-half of the sample to decay

Question 9

The nuclear symbol that completes the equation is a(n)________.   Am + ? →   Bk +   n

Accepted Answer

A) proton 
B) neutron 
C) gamma ray 
D) beta particle 
E) alpha particle 
A) proton 
B) neutron 
C) gamma ray 
D) beta particle 
E) alpha particle

Question 10

The product from the alpha decay of   U is ________.

Accepted Answer

A)    Np 
B)    Pu 
C)    Th 
D)    Ra 
E)    U 
A)    Np 
B)    Pu 
C)    Th 
D)    Ra 
E)    U

Question 11

When beta particles are emitted,the atomic number decreases.

Accepted Answer

A) True 
 B)False

Question 12

After two half-lives,the radioactivity of a sample is ________ of its original activity.

Accepted Answer

The answer of After two half-lives,the radioactivity of a sample...

Question 13

When a positron is emitted,the atomic number stays the same.

Accepted Answer

A) True 
 B)False

Question 14

The combination of H-3 and H-2 to give He-4 and a neutron is called nuclear ________.

Accepted Answer

The answer of The combination of H-3 and H-2 to...

Question 15

A radiation lab orders 64 μCi of P-32.After 42.9 days the activity of the sample is 8.0 μCi.What is the half-life of P-32?

Accepted Answer

A) 7.15 days 
B) 14.3 days 
C) 28.6 days 
D) 42.9 days 
E) 85.8 days 
A) 7.15 days 
B) 14.3 days 
C) 28.6 days 
D) 42.9 days 
E) 85.8 days

Question 16

A person begins to suffer radiation sickness at an exposure level of ________.

Accepted Answer

A) 25 rem 
B) 5 rem 
C) 500 rem 
D) 100 rem 
E) 600 rem 
A) 25 rem 
B) 5 rem 
C) 500 rem 
D) 100 rem 
E) 600 rem

Question 17

The shielding required for gamma rays is ________.

Accepted Answer

lead or th

Question 18

Which of the following is suitable as a minimum shielding for beta particles?

Accepted Answer

A) air 
B) 1 sheet of paper 
C) gloves 
D) 1 m of concrete 
E) 1 cm of lead 
A) air 
B) 1 sheet of paper 
C) gloves 
D) 1 m of concrete 
E) 1 cm of lead

Question 19

The SI unit used to measure the activity of a radioactive sample is called the ________.

Accepted Answer

A) rad 
B) gray 
C) sievert 
D) rem 
E) Bq 
A) rad 
B) gray 
C) sievert 
D) rem 
E) Bq

Question 20

Iodine-123,which is used for diagnostic imaging in the thyroid,has a half-life of 13 h.If 50.0 mg of I-123 were prepared at 8:00 A.M.on Monday,how many mg remain at 10:00 A.M.on the following day?

Accepted Answer

A) 50.0 mg 
B) 25.0 mg 
C) 12.5 mg 
D) 6.25 mg 
E) 3.13 mg 
A) 50.0 mg 
B) 25.0 mg 
C) 12.5 mg 
D) 6.25 mg 
E) 3.13 mg

There are ________ microcuries in one millicurie.

In the sun,nuclei of hydrogen combine to form a larger nucleus and release a great amount of energy.The process is known as ________.

In the nuclear equation of beta decay,________.

CT scans are based on the adsorption of X-rays.

One symptom of radiation sickness is an increased production of red blood cells.

One symbol for the beta particle is β.Another symbol for the same particle is ________.

One mCi of a radioactive substance emits more radiation than one μCi of the same substance.

The half-life of a radioisotope is ________.

The nuclear symbol that completes the equation is a(n)________. Am + ? → Bk + n

The product from the alpha decay of U is ________.

When beta particles are emitted,the atomic number decreases.

After two half-lives,the radioactivity of a sample is ________ of its original activity.

When a positron is emitted,the atomic number stays the same.

The combination of H-3 and H-2 to give He-4 and a neutron is called nuclear ________.

A radiation lab orders 64 μCi of P-32.After 42.9 days the activity of the sample is 8.0 μCi.What is the half-life of P-32?

A person begins to suffer radiation sickness at an exposure level of ________.

The shielding required for gamma rays is ________.

Which of the following is suitable as a minimum shielding for beta particles?

The SI unit used to measure the activity of a radioactive sample is called the ________.

Iodine-123,which is used for diagnostic imaging in the thyroid,has a half-life of 13 h.If 50.0 mg of I-123 were prepared at 8:00 A.M.on Monday,how many mg remain at 10:00 A.M.on the following day?

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

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Amino Acids, proteins, and Enzymes

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Exam 5: Nuclear Chemistry

There are ________ microcuries in one millicurie.

In the sun,nuclei of hydrogen combine to form a larger nucleus and release a great amount of energy.The process is known as ________.

In the nuclear equation of beta decay,________.

CT scans are based on the adsorption of X-rays.

One symptom of radiation sickness is an increased production of red blood cells.

One symbol for the beta particle is β.Another symbol for the same particle is ________.

One mCi of a radioactive substance emits more radiation than one μCi of the same substance.

The half-life of a radioisotope is ________.

The nuclear symbol that completes the equation is a(n)________. Am + ? → Bk + n

The product from the alpha decay of U is ________.

When beta particles are emitted,the atomic number decreases.

After two half-lives,the radioactivity of a sample is ________ of its original activity.

When a positron is emitted,the atomic number stays the same.

The combination of H-3 and H-2 to give He-4 and a neutron is called nuclear ________.

A radiation lab orders 64 μCi of P-32.After 42.9 days the activity of the sample is 8.0 μCi.What is the half-life of P-32?

A person begins to suffer radiation sickness at an exposure level of ________.

The shielding required for gamma rays is ________.

Which of the following is suitable as a minimum shielding for beta particles?

The SI unit used to measure the activity of a radioactive sample is called the ________.

Iodine-123,which is used for diagnostic imaging in the thyroid,has a half-life of 13 h.If 50.0 mg of I-123 were prepared at 8:00 A.M.on Monday,how many mg remain at 10:00 A.M.on the following day?

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