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Nuclear Chemistry

Total questions: 16

Worksheet time: 15mins

Name
Class
Date
1.

Which of the following types of nuclear reaction is most common in stars (like the sun)

a)

fusion

b)

fission

2.

Which of the following particles are in the nucleus (check all that apply)

a)

Protons

b)

Neutrons

c)

Electrons

3.

Which of the following symbols represents the Greek letter alpha?

a)

α

b)

β

c)

γ

d)

δ

4.

What is it called when a large nucleus splits into smaller nuclei?

(a)  

5.

What is the name of the force which holds the nucleus of an atom together?

a)

Strong Nuclear Force

b)

Weak Nuclear Force

c)

Gravity

d)

Electricity

e)

Magnetism

6.

Which of the following particles create the strong nuclear force? (check all that apply)

a)

Pions

b)

Gluons

c)

Alpha Particles

d)

Beta Particles

7.

How do the number of protons compare to the number of neutrons in large stable nuclei?

a)

p = n

b)

p>n

c)

p<n

8.

Which of the following is required to stop gamma waves?

a)

Paper

b)

Thin sheet of low-density metal or wood

c)

Thick sheet of high-density metal

9.

Which of the following forms of nuclear reaction is most commonly used in nuclear power plants?

a)

Fission

b)

Fusion

10.

If you begin with 40g of a radioactive substance. How many grams are left after 3 half-lives?

(a)  

11.

You begin with 60g of a radioactive element. After 4 hours, there are 15 g left. What is the length of the half-life in hours?

(a)  

12.

A substance has a half-life of 30 seconds. If you begin with a 400 g sample, how many grams are left 2 minutes later?

(a)  

13.

Which type of radiation in shown in this reaction?

a)

α (alpha)

b)

β (beta)

c)

γ (gamma)

14.

Which type of radiation in shown in this reaction?

a)

α (alpha)

b)

β (beta)

c)

γ (gamma)

15.

What mass number (M) would be required to balance this reaction?

(a)  

16.

What is the name of the missing element from this reaction. Start by balancing the reaction.

(a)