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Nuclear Chem. Review

Total questions: 30

Worksheet time: 33mins

Name
Class
Date
1.
Which type of nuclear radiation is being emitted here?
a)
alpha
b)
beta
c)
gamma
d)
none
2.
Balance the following equation:
146C --> 0-1e + ________
a)
145B
b)
146C
c)
147N
d)
42He
3.

Nuclear reactions occur because ______________ nuclei change their number of protons and neutrons to become ________________ and give off a large amount of energy.

a)

STABLE ; STABLE

b)

STABLE ; UNSTABLE

c)

UNSTABLE ; STABLE

d)

UNSTABLE ; UNSTABLE

4.

Which type of nuclear radiation is this symbol for?  24He_2^4He  

a)

Alpha

b)

Beta

c)

Gamma

d)

Positron

5.

 1943K → 2043Ca +  _{19}^{43}K\ \rightarrow\ _{20}^{43}Ca\ +\ \  ______  

Fill in the blank to correctly balance the nuclear equation

a)

 +1   0e_{+1}^{\ \ \ 0}e  

b)

 −1   0e_{-1}^{\ \ \ 0}e  

c)

 24He_2^4He  

d)

 01n_0^1n  

6.

Balance the following equation:

146C --> 0-1e + ________

a)

145B

b)

146C

c)

147N

d)

42He

7.

What is the definition for the half-life of a sample of a specific isotope?

a)

half of the lifespan of an isotope

b)

50 years

c)

the time it takes for a sample of atoms to decay and have half of their original amount/mass remaining.

d)

half the life expectancy of a group of animals

8.

How many half-lives pass by if we start with 1000 atoms of uranium-234 and end up with 250 atoms?

a)

1 half-life

b)

2 half-lives

c)

3 half-lives

d)

4 half-lives

9.
Which process produces beta particles?
a)
Alpha decay
b)
Beta decay
c)
Gamma decay
d)
Nuclear fusion
10.
The time taken for half of an amount of radioactive atoms to decay.
a)
Nuclear fusion
b)
Full-life
c)
Dead time
d)
Half-life
11.
Has a mass of 4 and a charge of +2
a)
Alpha
b)
Beta
c)
Gamma
12.

When the isotope 5024X releases a beta particle we get another element, Y, that looks like

a)

5023Y

b)

4622Y

c)

5025Y

d)

5024Y

13.

Radioisotopes are used to both ___________ and ________ medical problems.

(a)  

14.

particle of charge +1 and mass equal to that of an electron

a)

positron

b)

radioactivity

c)

alpha particle

d)

gamma radiation

e)

beta particle

15.

What is the function of the cooling towers of the nuclear reactor?

a)

to create steam

b)

to spin the turbine

c)

to limit the heat produced by the uranium

d)

to turn steam back into water

16.
What are the two major forces involved with nuclear energy? 
a)
Fission and Fusion
b)
Alpha and Beta particles
c)
Gamma and Fission
d)
Radioactivity and Alpha Decay
17.
Which process produces alpha particles?
a)
Alpha decay
b)
Beta decay
c)
Gamma decay
d)
Nuclear fusion
18.
Which process produces beta particles?
a)
Alpha decay
b)
Beta decay
c)
Gamma decay
d)
Nuclear fusion
19.
What do these symbols represent?
a)
alpha particle
b)
beta particle
c)
neutron
d)
gamma ray
20.
What type of nuclear equation is this?
a)
fusion
b)
fission
c)
alpha
d)
beta
21.
Has a mass of 4 and a charge of +2
a)
Alpha
b)
Beta
c)
Gamma
22.
Which type of nuclear radiation is being emitted here?
a)
Alpha
b)
beta
c)
gamma 
d)
none
23.
What is a half-life?
a)
The average time it takes for any element to disappear completely 
b)
The time it takes for a radioactive atom to lose half its neutrons
c)
The time it takes for half of any number of radioactive atoms to decay
d)
The time it takes for a radioactive atom to lose half its electrons 
24.
Which process produces alpha particles?
a)
Alpha decay
b)
Beta decay
c)
Gamma decay
d)
Nuclear fusion
25.
Nuclear energy uses _____ to turn turbines to power a generator.
a)
wind
b)
water
c)
steam
d)
solar
26.

Finish this equation

20983Bi--> _______ + 20581Tl

a)

42He

b)

0-1e

c)

y

27.

Identify the type of nuclear decay shown here

21483Bi → 0-1e + 21484Po

a)

alpha

b)

beta

c)

gamma

28.
Has the symbol
a)
Alpha
b)
Beta
c)
Gamma
d)
neutron
29.
If Thorium-234 undergoes a beta decay, What element will be left in its place?
a)
Actinium-234
b)
Thorium-233
c)
Protactinium-234
d)
Radium-230
30.
If we start off with element 5024X after an alpha decay we get another element Y that looks like
a)
5022Y
b)
 4622Y
c)
4820Y
d)
5426Y

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