x
Info
x
Warning
x
Danger
 / 
 / 
 / 
41.   Gamma rays require a thick slab of concrete or

Question : 41.   Gamma rays require a thick slab of concrete or : 1409661

 

 

41.   Gamma rays require a thick slab of concrete or lead to block them because they

A. have the lowest energy.

B. are so energetic that they have a very high penetrating power.

C. are large in size.

D. are small in size.

 

42.  If one starts with 10.0 grams of a radioactive substance, how much will remain after 3 half lives?

A.  1.25 g

B.  2.50 g

C.  3.33 g

D.  5.00 g

 

43.Iron-59 has a half-life of 45 days.  How much of a 50-gram sample would remain after 180 days?

A.  1 gram

B.  3 grams

C.  25 grams

D.  There is no way to determine the results.

 

44.A 35 mg dose of iodine-131 with a half-life of 8 days is administered to a patient.  How long will it take for the iodine to decay so that there are only about 2 mg remaining?

A.  8 days

B.  16 days

C.  32 days

D.  64 days

HEALTH LINKCT AND MRI IMAGING

 

45.Whereas x-ray works well for bones, the value of a CT scan is that  _____.

A.  it provides a 3 dimensional view of bones.

B.  it provides images of the inside of the body.

C.  it provides a clear picture of gamma rays produced within the tissue.

D.  it provides images used in studies, such as monitoring sugar usage.

HEALTH LINKCT AND MRI IMAGING

 

46.Whereas x-ray works well for bones, the value of MRI imaging is that _____.

A.  it provides a 3 dimensional view of bones.

B.  it provides images of the inside of the body.

C.  it provides a clear picture of gamma rays produced within the tissue.

D.  it provides images used in studies, such as monitoring sugar usage.

 

47.The reaction below, which occurs with release of large amounts of energy, is an example of a ________reaction

A. fission

B. fusion

C. neutralization

D. electrochemical

.

 

48. The reaction below, which releases large amounts of energy, is an example of what type of reaction?

A. fusion

B. chain

C. fission

D. precipitation

 

 

Solution
5 (1 Ratings )

Solved
Chemistry 1 Year Ago 34 Views
This Question has Been Answered!
Unlimited Access Free
Explore More than 2 Million+
  • Textbook Solutions
  • Flashcards
  • Homework Answers
  • Documents
Signup for Instant Access!
Ask an Expert
Our Experts can answer your tough homework and study questions
125091 Chemistry Questions Answered!
Post a Question