Question 1

When an isotope releases gamma radiation the atomic number

Accepted Answer

A) decreases by two and the mass number decreases by four. 
B) increases by one and the mass number remains the same. 
C) and the mass number decrease by one. 
D) and the mass number remain the same.

Question 2

When  undergoes beta-decay, the product is  .

Accepted Answer

A) True 
 B)False

Question 3

Which of the following correctly balances this nuclear fission reaction?

Accepted Answer

A)   
B)   
C)   
D)

Question 4

Isotopes with an even number of both protons and neutrons are generally stable.

Accepted Answer

A) True 
 B)False

Question 5

As the size of nuclei increases, the ratio of neutrons to protons in the band of stability increases to

Accepted Answer

A) 1.25 to 1. 
B) 1.5 to 1. 
C) 2 to 1. 
D) None of the above.

Question 6

An alpha particle is really a high-energy electron ejected from the nucleus.

Accepted Answer

A) True 
 B)False

Question 7

This type of radiation can easily pass through a human.

Accepted Answer

A) alpha 
B) beta 
C) gamma 
D) All of the above.

Question 8

Reactor control rods are made of a substance that

Accepted Answer

A) absorbs neutrons. 
B) emits neutrons. 
C) reflect neutrons. 
D) slow down neutrons so they produce more fission.

Question 9

The protons in a nucleus stay together due to the

Accepted Answer

A) electrostatic force of attraction. 
B) nuclear force. 
C) gravitational force. 
D) binding force.

Question 10

This type of radiation is really the nucleus of a helium atom.

Accepted Answer

A) alpha 
B) beta 
C) gamma 
D) All of the above.

Exam 13: Nuclear Reactions

When an isotope releases gamma radiation the atomic number

When undergoes beta-decay, the product is .

Which of the following correctly balances this nuclear fission reaction?

Isotopes with an even number of both protons and neutrons are generally stable.

As the size of nuclei increases, the ratio of neutrons to protons in the band of stability increases to

An alpha particle is really a high-energy electron ejected from the nucleus.

This type of radiation can easily pass through a human.

Reactor control rods are made of a substance that

The protons in a nucleus stay together due to the

This type of radiation is really the nucleus of a helium atom.