Question 1

In what type of radioactive decay does the atomic number of the product increase by one?

Accepted Answer

A)  alpha
B)  beta
C)  gamma
D)  positron emission
E)  electron captureF) D) and E)
G) C) and D)

Question 2

In the nuclear transmutation represented by 
,what is the emitted particle?

Accepted Answer

A)  neutron
B)  proton
C)  positron
D)  alpha particle
E)  electronF) A) and E)
G) D) and E)

Question 3

What exposure level to radiation is fatal to most humans?

Accepted Answer

A)  100 rem
B)  200 rem
C)  600 rem
D)  300 rem
E)  1000 remF) B) and E)
G) All of the above

Question 4

Due to the nature of the positron,________ is actually detected in positron emission tomography.

Accepted Answer

A)  alpha radiation
B)  beta radiation
C)  gamma radiation
D)  x-ray emission
E)  neutron emissionF) D) and E)
G) B) and D)

Question 5

Atoms with the same atomic number and different mass numbers ________.

Accepted Answer

A)  do not exist
B)  are isomers
C)  are isotopes
D)  are allotropes
E)  are resonance structuresF) B) and E)
G) B) and D)

Question 6

I has a half-life of 8.04 days.Assuming you start with a 1.03 mg sample of  I,how many mg will remain after 13.0 days?

Accepted Answer

A)  0.326
B)  0.268
C)  0.422
D)  0.0781
E)  0.336F) A) and D)
G) B) and D)

Question 7

All atoms of a given element have the same ________.

Accepted Answer

A)  mass number
B)  number of nucleons
C)  atomic mass
D)  number of neutrons
E)  atomic numberF) A) and B)
G) B) and E)

Question 8

The half-life of cobalt-60 is 5.20 yr.How many milligrams of a 2.000-mg sample remain after 9.50 years?

Accepted Answer

A)  0.565
B)  7.03 × 10-22
C)  7.076
D)  1.095
E)  1.435F) A) and D)
G) D) and E)

Question 9

Which of these nuclides is most likely to be radioactive?

Accepted Answer

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

Question 10

What is emitted in the nuclear transmutation,

Accepted Answer

A)  an alpha particle
B)  a beta particle
C)  a neutron
D)  a proton
E)  a gamma photonF) A) and D)
G) None of the above

Question 11

Bombardment of uranium-238 with a deuteron (hydrogen-2) generates neptunium-237 and ________ neutrons.

Accepted Answer

A)  1
B)  2
C)  3
D)  4
E)  5F) None of the above
G) A) and C)

Question 12

Radium undergoes alpha decay.The product of this reaction also undergoes alpha decay.What is the product of this second decay reaction?

Accepted Answer

A)  Po
B)  Rn
C)  U
D)  Th
E)  HgF) None of the above
G) C) and E)

Question 13

The missing product in this reaction would be found in which group of the periodic table?

Accepted Answer

A)  1A
B)  2A
C)  3A
D)  8A
E)  7AF) B) and C)
G) C) and E)

Question 14

What happens in the nucleus of an atom that undergoes positron emission?

Accepted Answer

A proton is converte...

Question 15

Alpha decay produces a new nucleus whose ________ than those respectively of the original nucleus.

Accepted Answer

A)  atomic number is 2 less and mass number is 2 less
B)  atomic number is 1 less and mass number is 2 less
C)  atomic number is 2 less and mass number is 4 less
D)  atomic number is 2 more and mass number is 4 more
E)  atomic number is 2 more and mass number is 2 lessF) All of the above
G) C) and D)

Question 16

The initial element used to make cobalt-60 for cancer radiation therapy is ________.

Accepted Answer

The answer of The initial element used to make cobalt-60...

Question 17

Nuclei above the belt of stability can lower their neutron-to-proton ratio by ________.

Accepted Answer

A)  beta emission
B)  gamma emission
C)  positron emission
D)  electron capture
E)  Any of the above processes will lower the neutron-to-proton ratio.F) A) and B)
G) C) and E)

Question 18

Which one of the following devices converts radioactive emissions to light for detection?

Accepted Answer

A)  Geiger counter
B)  photographic film
C)  scintillation counter
D)  radiotracer
E)  none of the aboveF) C) and D)
G) None of the above

Exam 21: Nuclear Chemistry

Nuclei above the belt of stability can lower their neutron-to-proton ratio by ________.

Correct Answer
verified

In what type of radioactive decay does the atomic number of the product increase by one?

Correct Answer
verified

Due to the nature of the positron,________ is actually detected in positron emission tomography.

Correct Answer
verified

Bombardment of uranium-238 with a deuteron (hydrogen-2) generates neptunium-237 and ________ neutrons.

Correct Answer
verified

In the nuclear transmutation represented by ,what is the emitted particle?

Correct Answer
verified

What is emitted in the nuclear transmutation,

Correct Answer
verified

The half-life of cobalt-60 is 5.20 yr.How many milligrams of a 2.000-mg sample remain after 9.50 years?

Correct Answer
verified

The missing product in this reaction would be found in which group of the periodic table?

Correct Answer
verified

Atoms with the same atomic number and different mass numbers ________.

Correct Answer
verified

Alpha decay produces a new nucleus whose ________ than those respectively of the original nucleus.

Correct Answer
verified

Radium undergoes alpha decay.The product of this reaction also undergoes alpha decay.What is the product of this second decay reaction?

Correct Answer
verified

What exposure level to radiation is fatal to most humans?

Correct Answer
verified

The initial element used to make cobalt-60 for cancer radiation therapy is ________.

Correct Answer
verified

I has a half-life of 8.04 days.Assuming you start with a 1.03 mg sample of I,how many mg will remain after 13.0 days?

Correct Answer
verified

Which one of the following devices converts radioactive emissions to light for detection?

Correct Answer
verified

All atoms of a given element have the same ________.

Correct Answer
verified

What happens in the nucleus of an atom that undergoes positron emission?

Correct Answer
verified
A proton is converte...
View Answer

Which of these nuclides is most likely to be radioactive?

Correct Answer
verified

Exam 21: Nuclear Chemistry

Nuclei above the belt of stability can lower their neutron-to-proton ratio by ________.

Correct AnswerverifiedShow Answer

In what type of radioactive decay does the atomic number of the product increase by one?

Correct AnswerverifiedShow Answer

Due to the nature of the positron,________ is actually detected in positron emission tomography.

Correct AnswerverifiedShow Answer

Bombardment of uranium-238 with a deuteron (hydrogen-2) generates neptunium-237 and ________ neutrons.

Correct AnswerverifiedShow Answer

In the nuclear transmutation represented by ,what is the emitted particle?

Correct AnswerverifiedShow Answer

What is emitted in the nuclear transmutation,

Correct AnswerverifiedShow Answer

The half-life of cobalt-60 is 5.20 yr.How many milligrams of a 2.000-mg sample remain after 9.50 years?

Correct AnswerverifiedShow Answer

The missing product in this reaction would be found in which group of the periodic table?

Correct AnswerverifiedShow Answer

Atoms with the same atomic number and different mass numbers ________.

Correct AnswerverifiedShow Answer

Alpha decay produces a new nucleus whose ________ than those respectively of the original nucleus.

Correct AnswerverifiedShow Answer

Radium undergoes alpha decay.The product of this reaction also undergoes alpha decay.What is the product of this second decay reaction?

Correct AnswerverifiedShow Answer

What exposure level to radiation is fatal to most humans?

Correct AnswerverifiedShow Answer

The initial element used to make cobalt-60 for cancer radiation therapy is ________.

Correct AnswerverifiedShow Answer

I has a half-life of 8.04 days.Assuming you start with a 1.03 mg sample of I,how many mg will remain after 13.0 days?

Correct AnswerverifiedShow Answer

Which one of the following devices converts radioactive emissions to light for detection?

Correct AnswerverifiedShow Answer

All atoms of a given element have the same ________.

Correct AnswerverifiedShow Answer

What happens in the nucleus of an atom that undergoes positron emission?

Correct AnswerverifiedA proton is converte...View AnswerShow Answer

Which of these nuclides is most likely to be radioactive?

Correct AnswerverifiedShow Answer

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A proton is converte...
View Answer

Correct Answer
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