Question 1

What is the missing particle?

Accepted Answer

A) positron 
B) beta particle 
C) alpha particle 
D) gamma particle 
E) none of the above 
A) positron 
B) beta particle 
C) alpha particle 
D) gamma particle 
E) none of the above

Question 2

What happens to the mass number of a nucleus that emits a positron?

Accepted Answer

A) It remains the same. 
B) It increases by one. 
C) It decreases by one. 
D) It increases by two. 
E) It decreases by two. 
A) It remains the same. 
B) It increases by one. 
C) It decreases by one. 
D) It increases by two. 
E) It decreases by two.

Question 3

How was radioactivity discovered?

Accepted Answer

A) Rutherford was investigating the structure of Au atoms and discovered alpha particles. 
B) Marie Curie was investigating the existence of uranic rays that occurred in some minerals. 
C) Becquerel was studying X-rays and phosphorescence to see if they were related. 
D) Benjamin Franklin was studying the creation of electrical current from the ionization of gases due to radioactive particles. 
E) none of the above 
A) Rutherford was investigating the structure of Au atoms and discovered alpha particles. 
B) Marie Curie was investigating the existence of uranic rays that occurred in some minerals. 
C) Becquerel was studying X-rays and phosphorescence to see if they were related. 
D) Benjamin Franklin was studying the creation of electrical current from the ionization of gases due to radioactive particles. 
E) none of the above

Question 4

Nuclear fusion:

Accepted Answer

A) is the formation of heavier elements from lighter ones. 
B) releases a larger amount of heat than nuclear fission. 
C) is the energy source of the sun and stars. 
D) produces non-radioactive elements. 
E) all of the above 
A) is the formation of heavier elements from lighter ones. 
B) releases a larger amount of heat than nuclear fission. 
C) is the energy source of the sun and stars. 
D) produces non-radioactive elements. 
E) all of the above

Question 5

Which of the following isotopes contains the most number of neutrons?

Accepted Answer

A)    Rn 
B)    Bi 
C)    Fr 
D)    Po 
E)    Rn 
A)    Rn 
B)    Bi 
C)    Fr 
D)    Po 
E)    Rn

Question 6

The reaction   H +   H →   He +   neutron is an example of nuclear fission.

Accepted Answer

A) True 
 B)False

Question 7

In a Geiger-Muller counter,radioactive particles pass through NaI which emits UV-Vis light.

Accepted Answer

A) True 
 B)False

Question 8

Nuclear power:

Accepted Answer

A) generates 20% of the electricity needed in the U.S. 
B) generates heat which boils water and turns a steam turbine to produce electricity. 
C) generates no air pollution or greenhouse gases. 
D) uses almost no fuel compared to fossil fuel plants. 
E) All of the above are true. 
A) generates 20% of the electricity needed in the U.S. 
B) generates heat which boils water and turns a steam turbine to produce electricity. 
C) generates no air pollution or greenhouse gases. 
D) uses almost no fuel compared to fossil fuel plants. 
E) All of the above are true.

Question 9

Acute radiation damage:

Accepted Answer

A) results from lower doses of radiation over extended periods of time. 
B) results from exposure to lower amounts of radiation in a short period of time. 
C) can result in death. 
D) results in an increased chance of cancer. 
E) all of the above 
A) results from lower doses of radiation over extended periods of time. 
B) results from exposure to lower amounts of radiation in a short period of time. 
C) can result in death. 
D) results in an increased chance of cancer. 
E) all of the above

Question 10

What is the missing particle?

Accepted Answer

A) positron 
B) beta particle 
C) alpha particle 
D) gamma particle 
E) none of the above 
A) positron 
B) beta particle 
C) alpha particle 
D) gamma particle 
E) none of the above

Question 11

A C-14 dating experiment revealed that an artifact had 50.0% of the activity of a modern organism.Given the half-life of C-14 is 5730 years,approximately how old is the artifact?

Accepted Answer

A) 28,650 
B) 34,380 
C) 22,920 
D) 5,730 
E) none of the above 
A) 28,650 
B) 34,380 
C) 22,920 
D) 5,730 
E) none of the above

Question 12

Which statement about alpha particles is FALSE?

Accepted Answer

A) symbol is:   He 
B) has high ionization power 
C) has low penetrating power 
D) are a harmless form of radiation 
E) All of the above are true. 
A) symbol is:   He 
B) has high ionization power 
C) has low penetrating power 
D) are a harmless form of radiation 
E) All of the above are true.

Question 13

A positron particle comes from the decay of a proton into a neutron and a positron.

Accepted Answer

A) True 
 B)False

Question 14

What is the main product when   Th undergoes beta decay?

Accepted Answer

A)    Ra 
B)    Ac 
C)    Pa 
D)    Th 
E) none of the above 
A)    Ra 
B)    Ac 
C)    Pa 
D)    Th 
E) none of the above

Question 15

Which of the following statements about beta particles is FALSE?

Accepted Answer

A) The symbol is:   e. 
B) Beta particles are created when neutrons become protons and electrons. 
C) They have intermediate ionizing power. 
D) They have intermediate penetrating power. 
E) They are a safe form of radioactivity. 
A) The symbol is:   e. 
B) Beta particles are created when neutrons become protons and electrons. 
C) They have intermediate ionizing power. 
D) They have intermediate penetrating power. 
E) They are a safe form of radioactivity.

What is the missing particle?

What happens to the mass number of a nucleus that emits a positron?

How was radioactivity discovered?

Nuclear fusion:

Which of the following isotopes contains the most number of neutrons?

The reaction H + H → He + neutron is an example of nuclear fission.

In a Geiger-Muller counter,radioactive particles pass through NaI which emits UV-Vis light.

Nuclear power:

Acute radiation damage:

What is the missing particle?

A C-14 dating experiment revealed that an artifact had 50.0% of the activity of a modern organism.Given the half-life of C-14 is 5730 years,approximately how old is the artifact?

Which statement about alpha particles is FALSE?

A positron particle comes from the decay of a proton into a neutron and a positron.

What is the main product when Th undergoes beta decay?

Which of the following statements about beta particles is FALSE?

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Chemical Composition

Chemical Reactions

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Electrons in Atoms and the Periodic Table

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Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

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Exam 17: Radioactivity and Nuclear Chemistry

What is the missing particle?

What happens to the mass number of a nucleus that emits a positron?

How was radioactivity discovered?

Nuclear fusion:

Which of the following isotopes contains the most number of neutrons?

The reaction H + H → He + neutron is an example of nuclear fission.

In a Geiger-Muller counter,radioactive particles pass through NaI which emits UV-Vis light.

Nuclear power:

Acute radiation damage:

What is the missing particle?

A C-14 dating experiment revealed that an artifact had 50.0% of the activity of a modern organism.Given the half-life of C-14 is 5730 years,approximately how old is the artifact?

Which statement about alpha particles is FALSE?

A positron particle comes from the decay of a proton into a neutron and a positron.

What is the main product when Th undergoes beta decay?

Which of the following statements about beta particles is FALSE?

The Chemical World

Measurement and Problem Solving

Matter and Energy

Atoms and Elements

Molecules and Compounds

Chemical Composition

Chemical Reactions

Quantities in Chemical Reactions

Electrons in Atoms and the Periodic Table

Chemical Bonding

Gases

Liquids, solids, and Intermolecular Forces

Solutions

Acids and Bases

Chemical Equilibrium

Oxidation and Reduction

Organic Chemistry

Biochemistry

Filters