WorksheetsIS Nuclear Review
Total questions: 41
Worksheet time: 1hrs 13mins
Name
Class
Date
1.
What is the symbol for an alpha particle?
a)
42He
b)
0-1e
c)
0+1 e
d)
10n
2.
In the symbol 20682Pb what does 206 stand for?
a)
Mass number
b)
Atomic number
c)
Atomic mass
d)
Number of protons
3.
Balance the following equation:
146C --> 0-1e + ________
146C --> 0-1e + ________
a)
145B
b)
146C
c)
147N
d)
42He
4.
In the symbol 167N what the 7 stand for?
a)
Mass number
b)
Atomic number
c)
Atomic mass
d)
Number of neutrons
5.
In fission neutron is often used to start the reaction and it is also a product of the reaction. This is called a ____
a)
neutron emission
b)
nuclear fusion
c)
domino effect
d)
chain reaction
6.
Two or more nuclei combine to form one larger nucleus in the process of nuclear _____.
a)
Fusion
b)
Fission
c)
Tracing
d)
Decay
7.
The time needed for half of a radioactive sample to decay is called its __________.
a)
decay period
b)
period
c)
transmutation time
d)
half-life
8.
Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?
a)
0.25g
b)
2.5g
c)
25g
d)
80g
9.
a)
Radioactive Decay
b)
Nuclear Fission
c)
Nuclear Fusion
10.
If we start off with element 5024X after an gamma decay we get an element(product) that looks like...
a)
5124X
b)
5023X
c)
5024X
d)
5025X
11.
The process in which an unstable atomic nucleus emits charged particles & energy.
a)
radioactivity
b)
background radiation
12.
The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?
a)
100.0g
b)
50.0g
c)
12.5g
d)
8.5g
13.
What makes something radioactive?
a)
elements with an atomic number above 81
b)
an unstable nucleus
c)
contaminated sewage
d)
It decays over time
14.
If the half-life of uranium-232 is 70 years, how many half-lives will it take for 10 g of it to be reduced to 1.25 g?
a)
1 half-life
b)
2 half-lives
c)
3 half-lives
d)
4 half-lives
15.
The diagram shows 32 atoms
32 of the Red are the parent isotope
0 of the atoms are daughter isotopes
How many half-lives have occurred?
a)
0
b)
1
c)
2
d)
3
16.
What type of decay is being illustrated in following picture?
a)
beta decay
b)
alpha decay
17.
Which type of nuclear reaction is this?
a)
Fission
b)
Fusion
c)
Alpha Decay
d)
Beta Decay
18.
Which type of nuclear reaction is this?
a)
Fission
b)
Fusion
c)
Alpha Decay
d)
Beta Decay
19.
Which type of nuclear reaction is this?
a)
Fission
b)
Fusion
c)
Alpha Decay
d)
Beta Decay
20.
Which type of nuclear reaction is this?
a)
Fission
b)
Fusion
c)
Alpha Decay
d)
Beta Decay
21.
The least penetrating form of radiation is...
a)
alpha
b)
beta
c)
gamma
d)
neutron
22.
Solve this equation for alpha decay.
85209At = ___ + 24He
85209At = ___ + 24He
a)
83205Bi
b)
86209Rn
c)
81207Tl
d)
85208At
23.
Uranium-238 decays into Thorium-234 by emitting .........
a)
an alpha particle
b)
a beta particle
c)
gamma rays
d)
visible light
24.
Radioactive materials have unstable...
a)
electrons
b)
protons
c)
nuclei
d)
neutrons
25.
Oxygen-19 produces ________________ through beta decay.
a)
nitrogen-19
b)
fluorine-19
c)
carbon-14
d)
lead-208
26.
What makes something radioactive?
a)
elements with an atomic number above 81
b)
an unstable nucleus
c)
contaminated sewage
d)
It decays over time
27.
If you start out with 100 grams of a radioisotope, how much remains after 2 half-lives?
a)
100 grams
b)
75 grams
c)
50 grams
d)
25 grams
28.
What particle completes this reaction?
a)
alpha particle
b)
beta particle
c)
gamma particle
d)
neutron
29.
The least penetrating form of radiation is...
a)
alpha
b)
beta
c)
gamma
d)
neutron
30.
What is another name for an alpha particle?
a)
electron
b)
x-ray
c)
hydrogen nucleus
d)
helium nucleus
31.
What is a beta particle?
a)
an emitted helium nucleus
b)
a high energy wave
c)
an energetic electron from a decomposed neutron
d)
none of the above
32.
A nuclear reaction where a nucleus splits into two smaller nuclei is...
a)
Fission
b)
Fusion
c)
Gamma decay
d)
Beta decay
33.
What would two different isotopes of an atom have in common?
a)
Number of neutrons
b)
Number of protons
c)
Atomic weight
d)
Atomic mass
34.
What element is the ?
a)
Ag-115
b)
Cd-115
c)
Pd-115
d)
Not Listed
35.
The three main types of nuclear radiation are alpha, beta, and gamma. Which of the following lists these types of radiation from highest penetrating power to lowest penetrating power?
a)
alpha, gamma, beta
b)
beta, alpha, gamma
c)
beta, gamma, alpha
d)
gamma, beta, alpha
36.
Which equation correctly represents the alpha decay of polonium-214?
a)
A
b)
B
c)
C
d)
D
37.
Complete the nuclear equation and determine the type of decay that is occurring in this reaction.
a)
alpha
b)
beta
c)
gamma
d)
none
38.
What is Half-life?
a)
The amount of time it takes for some of the nuclei in a sample of the isotope to decay
b)
The amount of time it takes for half the electrons in a sample of the isotope to decay
c)
The amount of time it takes for half the nuclei in a sample of the isotope to decay
d)
the amount of time it takes to double the nuclei in a sample of the isotope to decay
39.
The half-life of Zn-71 is 2.4 minutes. If one had 100.0 g at the beginning, how many grams would be left after 7.2 minutes has elapsed?
a)
100.0g
b)
50.0g
c)
12.5g
d)
8.5g
40.
Barium-122 has a half-life of 2 minutes. A fresh sample weighing 80 g was obtained. If it takes 10 minutes to set up an experiment using barium-122, how much barium-122 will be left when the experiment begins?
a)
0.25g
b)
2.5g
c)
25g
d)
80g
41.
The half-life of strontium-90 is 25 years. How much strontium-90 will remain after 100 years if the initial amount is 4.0 g?
a)
3.0g
b)
0.25mg
c)
0.3g
d)
0.25g
100 %
