Question 1

If an object has 25% of the C-14   activity as a living organism,the age of the item is:

Accepted Answer

A) 11,460 years. 
B) 17,190 years. 
C) 22,920 years. 
D) 28,650 years. 
E) More information is needed. 
A) 11,460 years. 
B) 17,190 years. 
C) 22,920 years. 
D) 28,650 years. 
E) More information is needed. A

Question 2

The control rods of a nuclear reactor:

Accepted Answer

A) regulate the chain reaction because they contain catalysts. 
B) regulate the chain reaction because they absorb the U-235 atoms. 
C) regulate the chain reaction because they absorb the neutrons. 
D) regulate the chain reaction because they produce positrons. 
E) none of the above 
A) regulate the chain reaction because they contain catalysts. 
B) regulate the chain reaction because they absorb the U-235 atoms. 
C) regulate the chain reaction because they absorb the neutrons. 
D) regulate the chain reaction because they produce positrons. 
E) none of the above C

Question 3

A major natural source of radiation is due to the radon gas in our environment.

Accepted Answer

A) True 
 B)False  True

Question 4

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 5

How many protons and neutrons are in   U?

Accepted Answer

A) 92 p and 235 n 
B) 92 n and 235 p 
C) 92 n and 143 p 
D) 92 p and 143 n 
E) none of the above 
A) 92 p and 235 n 
B) 92 n and 235 p 
C) 92 n and 143 p 
D) 92 p and 143 n 
E) none of the above

Question 6

Madam Curie discovered two new elements.

Accepted Answer

A) True 
 B)False

Question 7

How many protons and neutrons are in   Sn?

Accepted Answer

A) 50 p and 169 n 
B) 50 n and 69 p 
C) 50 n and 119 p 
D) 50 p and 69 n 
E) none of the above 
A) 50 p and 169 n 
B) 50 n and 69 p 
C) 50 n and 119 p 
D) 50 p and 69 n 
E) none of the above

Question 8

The alpha particle (α)is:   He.

Accepted Answer

A) True 
 B)False

Question 9

The first experiment that converted one element to another was performed in 1919 by Ernest Rutherford.An isotope of nitrogen was bombarded with a type of particle to get an oxygen atom as shown: 
  N + ? →   O +   H 
Which type of particle was used to bombard the nitrogen atom?

Accepted Answer

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

Question 10

Which of the following statements about the creation of the nuclear bomb is FALSE?

Accepted Answer

A) Einstein lobbied President Roosevelt to pursue creation of the bomb. 
B) American war intelligence feared the Germans were ahead of the Allies in developing nuclear weapons in WWII. 
C) J.R.Oppenheimer headed the Manhattan Project. 
D) The Germans were defeated by the time the bomb had been developed. 
E) All of the above are true. 
A) Einstein lobbied President Roosevelt to pursue creation of the bomb. 
B) American war intelligence feared the Germans were ahead of the Allies in developing nuclear weapons in WWII. 
C) J.R.Oppenheimer headed the Manhattan Project. 
D) The Germans were defeated by the time the bomb had been developed. 
E) All of the above are true.

Question 11

Iodine-131 has a half-life of 8 days.How much of a 1000 milligram sample of iodine-131 would be left after 32 days?

Accepted Answer

A) 500 milligram 
B) 250 milligram 
C) 125 milligram 
D) 62.5 milligram 
E) 31.25 milligram 
A) 500 milligram 
B) 250 milligram 
C) 125 milligram 
D) 62.5 milligram 
E) 31.25 milligram

Question 12

During the first half-life you lose half of the radioactive material,during the second half life you lose the remaining half.

Accepted Answer

A) True 
 B)False

Question 13

Which fact about carbon-14 dating is FALSE?

Accepted Answer

A) C-14 is formed by neutron bombardment of nitrogen in the upper atmosphere. 
B) C-14 dating can only work on items that come from a living source. 
C) C-14 dating only works as far back as 50,000 years. 
D) C-14 accuracy is verified by dating antique items of a known age. 
E) All of the above statements are true. 
A) C-14 is formed by neutron bombardment of nitrogen in the upper atmosphere. 
B) C-14 dating can only work on items that come from a living source. 
C) C-14 dating only works as far back as 50,000 years. 
D) C-14 accuracy is verified by dating antique items of a known age. 
E) All of the above statements are true.

Question 14

A gamma ray has no charge and no mass.

Accepted Answer

A) True 
 B)False

Question 15

The hydrogen isotope known as tritium contains three neutrons.

Accepted Answer

A) True 
 B)False

Question 16

Radioactive elements are used for:

Accepted Answer

A) medical diagnosis. 
B) medical treatment. 
C) determining age of fossils and rocks. 
D) generating electricity. 
E) all of the above 
A) medical diagnosis. 
B) medical treatment. 
C) determining age of fossils and rocks. 
D) generating electricity. 
E) all of the above

Question 17

Who discovered radioactivity?

Accepted Answer

A) Antoine Becquerel 
B) Pierre Curie 
C) Marie Curie 
D) Ernest Rutherford 
E) Benjamin Franklin 
A) Antoine Becquerel 
B) Pierre Curie 
C) Marie Curie 
D) Ernest Rutherford 
E) Benjamin Franklin

Question 18

How does the emission of a gamma particle effect the radioactive atom?

Accepted Answer

A) The atom has a lower amount of energy. 
B) The atomic number decreases. 
C) The atomic mass increases. 
D) The atom gains energy for further radioactive particle emission. 
E) All of the above are true. 
A) The atom has a lower amount of energy. 
B) The atomic number decreases. 
C) The atomic mass increases. 
D) The atom gains energy for further radioactive particle emission. 
E) All of the above are true.

Question 19

Which statement about gamma radiation is FALSE?

Accepted Answer

A) The symbol is: 
  γ. 
B) They have low ionization energy. 
C) They have high penetrating power. 
D) They are high energy photons. 
E) All of the above are true. 
A) The symbol is: 
  γ. 
B) They have low ionization energy. 
C) They have high penetrating power. 
D) They are high energy photons. 
E) All of the above are true.

Question 20

What is the main product when   Bk emits a gamma ray?

Accepted Answer

A)    Bk 
B)    Am 
C)    Cm 
D)    Cf 
E) none of the above 
A)    Bk 
B)    Am 
C)    Cm 
D)    Cf 
E) none of the above

If an object has 25% of the C-14 activity as a living organism,the age of the item is:

The control rods of a nuclear reactor:

A major natural source of radiation is due to the radon gas in our environment.

What is the missing particle?

How many protons and neutrons are in U?

Madam Curie discovered two new elements.

How many protons and neutrons are in Sn?

The alpha particle (α)is: He.

The first experiment that converted one element to another was performed in 1919 by Ernest Rutherford.An isotope of nitrogen was bombarded with a type of particle to get an oxygen atom as shown: N + ? → O + H Which type of particle was used to bombard the nitrogen atom?

Which of the following statements about the creation of the nuclear bomb is FALSE?

Iodine-131 has a half-life of 8 days.How much of a 1000 milligram sample of iodine-131 would be left after 32 days?

During the first half-life you lose half of the radioactive material,during the second half life you lose the remaining half.

Which fact about carbon-14 dating is FALSE?

A gamma ray has no charge and no mass.

The hydrogen isotope known as tritium contains three neutrons.

Radioactive elements are used for:

Who discovered radioactivity?

How does the emission of a gamma particle effect the radioactive atom?

Which statement about gamma radiation is FALSE?

What is the main product when Bk emits a gamma ray?

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

Exam 17: Radioactivity and Nuclear Chemistry

If an object has 25% of the C-14 activity as a living organism,the age of the item is:

The control rods of a nuclear reactor:

A major natural source of radiation is due to the radon gas in our environment.

What is the missing particle?

How many protons and neutrons are in U?

Madam Curie discovered two new elements.

How many protons and neutrons are in Sn?

The alpha particle (α)is: He.

The first experiment that converted one element to another was performed in 1919 by Ernest Rutherford.An isotope of nitrogen was bombarded with a type of particle to get an oxygen atom as shown: N + ? → O + H Which type of particle was used to bombard the nitrogen atom?

Which of the following statements about the creation of the nuclear bomb is FALSE?

Iodine-131 has a half-life of 8 days.How much of a 1000 milligram sample of iodine-131 would be left after 32 days?

During the first half-life you lose half of the radioactive material,during the second half life you lose the remaining half.

Which fact about carbon-14 dating is FALSE?

A gamma ray has no charge and no mass.

The hydrogen isotope known as tritium contains three neutrons.

Radioactive elements are used for:

Who discovered radioactivity?

How does the emission of a gamma particle effect the radioactive atom?

Which statement about gamma radiation is FALSE?

What is the main product when Bk emits a gamma ray?

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