Question 1

Which of the following isotopes is most likely to be unstable?

Accepted Answer

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

Question 2

Write a complete,balanced equation to represent the alpha decay of radon-210.

Accepted Answer

The answer of Write a complete,balanced equation to represent the...

Question 3

Select the nuclide that completes the following nuclear reaction.

Accepted Answer

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

Question 4

Gamma rays are not deflected by an electric field.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following isotopes is most likely to be unstable?

Accepted Answer

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

Question 6

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

Accepted Answer

A)  ( α\alphaα  decay.) 
B)  ( β\betaβ  decay.) 
C)  positron decay.
D)  electron capture.
E)  ( γ\gammaγ  decay.)  F) A) and E)
G) D) and E)

Question 7

A 55-kg person exposed to thorium-234 receives 7.5  ×	imes×  104  β\betaβ  particles,each with an energy of 1.6  ×	imes×  10-14 J.How many rads does the person receive?

Accepted Answer

A)  2.1  ×	imes×  10-19
B)  1.2  ×	imes×  10-17
C)  2.2  ×	imes×  10-9
D)  1.2  ×	imes×  10-9
E)  None of these choices is correct. F) B) and C)
G) A) and E)

Question 8

A patient's thyroid gland is to be exposed to an average of 5.5 µCi for 16 days as an ingested sample of iodine-131 decays.If the energy of the  β\betaβ  radiation is 9.7  ×	imes×  10-14 J and the mass of the thyroid is 32.0 g,what is the dose received by the patient?

Accepted Answer

A)  0.027 rads
B)  1.2 rads
C)  37 rads
D)  85 rads
E)  None of these choices is correct. F) A) and E)
G) All of the above

Question 9

When an electron and its anti-particle,a positron,collide,they annihilate each other.Calculate the energy released in this process,in J.(The positron mass is the same as the electron mass,namely 9.11 $\times$ 10-31 kg. )

Accepted Answer

1.64 <img  loading="lazy" src="/assets/images/blured-textbook.svg" class="d-inline m-1" alt="blured image" width="139" height="30"> 10<s...

Question 10

The radiochemist,Will I.Glow,studied thorium-232 and found that 2.82  ×	imes×  10-7 moles emitted 8.42  ×	imes×  106  α\alphaα  particles in one year.What is the decay constant for thorium-232?

Accepted Answer

A)  3.35  ×	imes×  10-14 yr-1
B)  4.96  ×	imes×  10-11 yr-1
C)  1.40  ×	imes×  1010 yr-1
D)  2.99  ×	imes×  1013 yr-1
E)  None of these choices is correct. F) A) and B)
G) A) and C)

Question 11

Gamma rays are high energy electrons.

Accepted Answer

A) True 
 B)False

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

Palladium-107 undergoes  β\betaβ  decay (t1/2 = 6.5  ×	imes×  105 yr) to form silver-107.How long will it take for 0.150 mol of silver-107 to form from 1.25 mol of palladium-107?

Accepted Answer

A)  2.0  ×	imes×  107 y
B)  1.4  ×	imes×  107 y
C)  1.2  ×	imes×  106 y
D)  8.3  ×	imes×  105 y
E)  1.2  ×	imes×  105 y F) C) and D)
G) A) and D)

Question 14

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

Accepted Answer

A)  4.0  ×	imes×  10-7 MeV
B)  2.5 MeV
C)  40 MeV
D)  2.5  ×	imes×  106 MeV
E)  None of these choices is correct. F) B) and C)
G) D) and E)

Question 15

Select the nuclide that completes the following nuclear reaction.

Accepted Answer

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

Exam 23: Nuclear Reactions and Their Applications

Gamma rays are high energy electrons.

Correct Answer
verified

A patient's thyroid gland is to be exposed to an average of 5.5 µCi for 16 days as an ingested sample of iodine-131 decays.If the energy of the $\beta$ radiation is 9.7 $\times$ 10^-14 J and the mass of the thyroid is 32.0 g,what is the dose received by the patient?

Correct Answer
verified

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

Correct Answer
verified

Which of the following isotopes is most likely to be unstable?

Correct Answer
verified

Write a complete,balanced equation to represent the alpha decay of radon-210.

Correct Answer
verified

The radiochemist,Will I.Glow,studied thorium-232 and found that 2.82 $\times$ 10^-7 moles emitted 8.42 $\times$ 10⁶ $\alpha$ particles in one year.What is the decay constant for thorium-232?

Correct Answer
verified

Gamma rays are not deflected by an electric field.

Correct Answer
verified

Select the nuclide that completes the following nuclear reaction.

Correct Answer
verified

Which of the following isotopes is most likely to be unstable?

Correct Answer
verified

When an electron and its anti-particle,a positron,collide,they annihilate each other.Calculate the energy released in this process,in J.(The positron mass is the same as the electron mass,namely 9.11 $\times$ 10^-31 kg. )

Correct Answer
verified
1.64 10
View Answer

Select the nuclide that completes the following nuclear reaction.

Correct Answer
verified

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

Correct Answer
verified

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

Correct Answer
verified

A 55-kg person exposed to thorium-234 receives 7.5 $\times$ 10⁴ $\beta$ particles,each with an energy of 1.6 $\times$ 10^-14 J.How many rads does the person receive?

Correct Answer
verified

Palladium-107 undergoes $\beta$ decay (t_1/2 = 6.5 $\times$ 10⁵ yr) to form silver-107.How long will it take for 0.150 mol of silver-107 to form from 1.25 mol of palladium-107?

Correct Answer
verified

Exam 23: Nuclear Reactions and Their Applications

Gamma rays are high energy electrons.

Correct AnswerverifiedShow Answer

A patient's thyroid gland is to be exposed to an average of 5.5 µCi for 16 days as an ingested sample of iodine-131 decays.If the energy of the β\betaβ radiation is 9.7 ×\times× 10-14 J and the mass of the thyroid is 32.0 g,what is the dose received by the patient?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following isotopes is most likely to be unstable?

Correct AnswerverifiedShow Answer

Write a complete,balanced equation to represent the alpha decay of radon-210.

Correct AnswerverifiedShow Answer

The radiochemist,Will I.Glow,studied thorium-232 and found that 2.82 ×\times× 10-7 moles emitted 8.42 ×\times× 106 α\alphaα particles in one year.What is the decay constant for thorium-232?

Correct AnswerverifiedShow Answer

Gamma rays are not deflected by an electric field.

Correct AnswerverifiedShow Answer

Select the nuclide that completes the following nuclear reaction.

Correct AnswerverifiedShow Answer

Which of the following isotopes is most likely to be unstable?

Correct AnswerverifiedShow Answer

When an electron and its anti-particle,a positron,collide,they annihilate each other.Calculate the energy released in this process,in J.(The positron mass is the same as the electron mass,namely 9.11 ×\times× 10-31 kg. )

Correct Answerverified1.64 10View AnswerShow Answer

Select the nuclide that completes the following nuclear reaction.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

A 55-kg person exposed to thorium-234 receives 7.5 ×\times× 104 β\betaβ particles,each with an energy of 1.6 ×\times× 10-14 J.How many rads does the person receive?

Correct AnswerverifiedShow Answer

Palladium-107 undergoes β\betaβ decay (t1/2 = 6.5 ×\times× 105 yr) to form silver-107.How long will it take for 0.150 mol of silver-107 to form from 1.25 mol of palladium-107?

Correct AnswerverifiedShow Answer

Correct Answer
verified

A patient's thyroid gland is to be exposed to an average of 5.5 µCi for 16 days as an ingested sample of iodine-131 decays.If the energy of the $\beta$ radiation is 9.7 $\times$ 10^-14 J and the mass of the thyroid is 32.0 g,what is the dose received by the patient?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

The radiochemist,Will I.Glow,studied thorium-232 and found that 2.82 $\times$ 10^-7 moles emitted 8.42 $\times$ 10⁶ $\alpha$ particles in one year.What is the decay constant for thorium-232?

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

When an electron and its anti-particle,a positron,collide,they annihilate each other.Calculate the energy released in this process,in J.(The positron mass is the same as the electron mass,namely 9.11 $\times$ 10^-31 kg. )

Correct Answer
verified
1.64 10
View Answer

Correct Answer
verified

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

Correct Answer
verified

Correct Answer
verified

A 55-kg person exposed to thorium-234 receives 7.5 $\times$ 10⁴ $\beta$ particles,each with an energy of 1.6 $\times$ 10^-14 J.How many rads does the person receive?

Correct Answer
verified

Palladium-107 undergoes $\beta$ decay (t_1/2 = 6.5 $\times$ 10⁵ yr) to form silver-107.How long will it take for 0.150 mol of silver-107 to form from 1.25 mol of palladium-107?

Correct Answer
verified