Question 1

Select the nuclide that completes the following nuclear reaction.

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) D) and E)
G) B) and E)

Question 2

Select the nuclide that completes the following nuclear reaction.

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) A) and D)
G) A) and C)

Question 3

After 4 half-lives, the fraction of a radioactive isotope which still remains is approximately one-eighth.

Accepted Answer

A) True 
 B)False

Question 4

In the equation above, what particle or type of radiation needs to be included on the right-hand side in order to balance it?

Accepted Answer

A)  Alpha
B)  Beta
C)  Gamma
D)  Positron
E)  ProtonF) A) and B)
G) B) and D)

Question 5

Which of the following types of radioactive decay does not produce new element?

Accepted Answer

A)  Gamma emission
B)  Electron capture
C)  Beta emission
D)  Alpha emission
E)  Double beta emissionF) None of the above
G) D) and E)

Question 6

The isotopes of promethium,  and  are unstable, and lie on opposite sides of the "line of stability". Which of the following combinations is most likely to represent the type of decay for these isotopes?

Accepted Answer

A)  Promethium-144, β decay; Promethium-134, positron decay
B)  Promethium-144, positron decay; Promethium-134, β decay
C)  Promethium-144, positron decay; Promethium-134, electron capture
D)  Promethium-144, electron capture; Promethium-134, positron decay
E)  Promethium-144, β decay; Promethium-134, γ decayF) A) and E)
G) A) and B)

Question 7

Which of the following isotopes is definitely unstable?

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) B) and E)
G) A) and C)

Question 8

Sodium-21 will emit positrons each having an energy of 4.0 × 10-13 J. What is this energy in MeV?

Accepted Answer

A)  4.0 × 10 -7 MeV
B)  2.5 MeV
C)  40 MeV
D)  2.5 × 10 6 MeV
E)  None of these choices are correct.F) A) and C)
G) C) and D)

Question 9

Identify the missing species in the following nuclear transmutation.

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) D) and E)
G) C) and D)

Question 10

An isotope with a high value of N/Z will tend to decay through

Accepted Answer

A)  α decay.
B)  β decay.
C)  positron decay.
D)  electron capture.
E)  γ decay.F) A) and B)
G) B) and C)

Question 11

No alpha decay is observed for isotopes of elements with Z < 83.

Accepted Answer

A) True 
 B)False

Question 12

Identify the missing species in the following nuclear transmutation.

Accepted Answer

A)   
B)   
C)   
D)   
E)  None of these choices are correct.F) D) and E)
G) B) and E)

Question 13

The isotopes  are all stable, while  is radioactive. The mode of decay for  is most likely to be

Accepted Answer

A)  positron decay.
B)  alpha decay.
C)  beta decay.
D)  gamma decay.
E)  fission.F) All of the above
G) D) and E)

Question 14

Most foodstuffs contain natural, radioactive isotopes.

Accepted Answer

A) True 
 B)False

Question 15

Detection of radiation by a Geiger-Müller counter depends on

Accepted Answer

A)  the emission of a photon from an excited atom.
B)  the ability of an ionized gas to carry an electrical current.
C)  the emission of a photon of light by the radioactive particle.
D)  the ability of a photomultiplier tube to amplify the electrical signal from a phosphor.
E)  the detection of the sound made by decay particles.F) A) and E)
G) D) and E)

Question 16

Identify the missing species in the following nuclear transmutation.

Accepted Answer

A)   
B)   
C)   
D)   
E)   F) C) and D)
G) None of the above

Question 17

The r-process occurs during supernova explosions.

Accepted Answer

A) True 
 B)False

Question 18

A N-14 nucleus is hit by a particle, forming a C-14 nucleus and a proton as the only products. Identify the type of particle which struck the N-14 nucleus.

Accepted Answer

A)  Alpha
B)  Proton
C)  Electron
D)  Neutron
E)  DeuteriumF) B) and D)
G) D) and E)

Question 19

Which one of the following is a subatomic particle closely related to the positron?

Accepted Answer

A)  Proton
B)  Electron
C)  Negatron
D)  Neutron
E)  NeutrinoF) B) and D)
G) A) and B)

Question 20

Who discovered radioactivity?

Accepted Answer

A)  Geiger
B)  Curie
C)  Roentgen
D)  Becquerel
E)  RutherfordF) B) and C)
G) B) and D)

Exam 24: Nuclear Reactions and Their Applications

Identify the missing species in the following nuclear transmutation.

Correct AnswerverifiedShow Answer

Most foodstuffs contain natural, radioactive isotopes.

Correct AnswerverifiedShow Answer

Which one of the following is a subatomic particle closely related to the positron?

Correct AnswerverifiedShow Answer

Detection of radiation by a Geiger-Müller counter depends on

Correct AnswerverifiedShow Answer

Select the nuclide that completes the following nuclear reaction.

Correct AnswerverifiedShow Answer

An isotope with a high value of N/Z will tend to decay through

Correct AnswerverifiedShow Answer

Which of the following isotopes is definitely unstable?

Correct AnswerverifiedShow Answer

Identify the missing species in the following nuclear transmutation.

Correct AnswerverifiedShow Answer

The isotopes are all stable, while is radioactive. The mode of decay for is most likely to be

Correct AnswerverifiedShow Answer

Identify the missing species in the following nuclear transmutation.

Correct AnswerverifiedShow Answer

After 4 half-lives, the fraction of a radioactive isotope which still remains is approximately one-eighth.

Correct AnswerverifiedShow Answer

The isotopes of promethium, and are unstable, and lie on opposite sides of the "line of stability". Which of the following combinations is most likely to represent the type of decay for these isotopes?

Correct AnswerverifiedShow Answer

Which of the following types of radioactive decay does not produce new element?

Correct AnswerverifiedShow Answer

In the equation above, what particle or type of radiation needs to be included on the right-hand side in order to balance it?

Correct AnswerverifiedShow Answer

The r-process occurs during supernova explosions.

Correct AnswerverifiedShow Answer

Select the nuclide that completes the following nuclear reaction.

Correct AnswerverifiedShow Answer

No alpha decay is observed for isotopes of elements with Z < 83.

Correct AnswerverifiedShow Answer

Sodium-21 will emit positrons each having an energy of 4.0 × 10-13 J. What is this energy in MeV?

Correct AnswerverifiedShow Answer

A N-14 nucleus is hit by a particle, forming a C-14 nucleus and a proton as the only products. Identify the type of particle which struck the N-14 nucleus.

Correct AnswerverifiedShow Answer

Who discovered radioactivity?

Correct AnswerverifiedShow Answer

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Sodium-21 will emit positrons each having an energy of 4.0 × 10^-¹³ J. What is this energy in MeV?

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