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CE Nuclear Review
Name_____________________
You need to know this to do well on the TEST!!!!!!
1. Fill in the table:
Alpha
Beta
Gamma
positron neutron
rays
rays
rays
symbol
e. An isotope of Curium containing 150 neutrons is
bombarded with and captures a proton.
f. Pm-142 undergoes electron capture.
actual particle
representation
charges
g.
142
61𝑃𝑚
h.
________ →

142
60𝑁𝑑
+ __________
0
+1𝑒
226
86𝑅𝑛
+
2. Which nuclear particle has the greatest mass? Least mass?
3. What will stop the following particles? Star the least
penetrating power.
alpha
5. How much fissionable material is required to have a selfsustaining reaction?
6.
Define
Happens in Stars or with
Nuclear Energy/power?
Fission
beta
Fusion
gamma
4. Write the nuclear equation for each word equation.
a. Radon – 222 is an alpha emitter.
b.
___ is produced when thorium -234 emits an alpha
particle.
7. Draw a magnetic field with a positive plate on the top and a
negative plate on the bottom. Show how the alpha particles,
beta particles, and gamma rays are affected by the charged
plates.
c. The decay of 32P to 32S occurs through the emission of
___.
d. Einsteinium – 253 is bombarded by an alpha particle. It
will release one neutron.
8. What is the main difference between a nuclear reaction and a
chemical reaction? What part of the atom is involved in
these types of reactions?
9. There are some elements within the periodic table that do not
occur in nature, can you list a few?
17. What is the difference between hydrogen-3 and hydrogen-1?
10. How can synthetic elements be produced?
18. Write the nuclear symbol for Iron-56. ______________
11. A 5.0 g sample of Lead-210 decays to approximately .63 g.
How much time has passed if Lead-210 has a half-life of 22
years?
How many Protons?__________
12. The half-life of radium-226 is 1600 years. How many grams
of a 0.25g sample will remain after 4800 years?
How many electrons? __________
How many neutrons? __________
19. What kinds of emissions can cause radiation sickness?
13. Sodium-24 has a half-life of 15 hours. How much sodium-24
will remain in an 18.0g sample after 60 hours?
20. Define Free Radicals and describe why they are dangerous.
14. The half-life of radon-222 is 3.823 days. What was the
original mass if 0.050g remains after 7.646 days?
21. List the characteristics of a diagnostic tracer.
15. The half-life of tritium ( 31𝐻 ) is 12.5 years. Suppose you have
a sample containing .020 moles of tritium. How many years
would be required to reduce your sample to 3.125 x 10-4
moles?
16. How many neutrons are produced in each of the following
fission reactions?
90
147
1
1
a. 239
94𝑃𝑢 + 0𝑛  38𝑆𝑟 + 56𝐵𝑎 1 + _____ 0𝑛
b.
235
1
92𝑈+ 0𝑛

72
30𝑍𝑛
1
+ 160
62𝑆𝑚 + _____ 0𝑛
22. List the characteristics that are important for radioisotope
dating.
Review Nuclear
Name______Key__
1. Fill in the table:
Alpha
Particle
symbol
α
Beta
Particle
𝟒
𝟐𝑯𝒆
𝟎
−𝟏𝒆
actual particle
representation
Charges
+2
Gamma
radiation
positron
𝟐𝟒𝟔
𝟗𝟔𝑪𝒎
neutron
γ
β
-1
e. An isotope of Curium containing 150 neutrons is
bombarded with and captures a proton.
f. Pm-142 undergoes electron capture.
𝟏𝟒𝟐
𝟔𝟏𝑷𝒎
n
𝟎
𝟎𝜸
0
𝟎
+𝟏𝒆
+1
𝟏
𝟎𝒏
0
2. Which nuclear particle has the greatest mass? Alpha
Least mass? Gamma rays
3. What will stop the following particles? Star the least
penetrating power.
alpha
Paper/ skin
beta
0.5 cm lead
gamma Thick lead or 6 feet concrete
4. Write the nuclear equation for each word equation.
a. Radon – 222 emits an alpha particle.
𝟐𝟐𝟐
𝟖𝟔𝑹𝒏
 𝟒𝟐𝑯𝒆 +
𝟐𝟏𝟖
𝟖𝟒𝑷𝒐
𝟐𝟑𝟒
𝟗𝟎𝑻𝒉
 𝟒𝟐𝑯𝒆 +
𝟐𝟑𝟎
𝟖𝟖𝑹𝒂
+ 𝟏𝟏𝑯 𝟐𝟒𝟕
𝟗𝟕𝑩𝒌
+
𝟎
𝟏𝟒𝟐
−𝟏𝒆 𝟔𝟎𝑵𝒅
g.
142
61𝑃𝑚
h.
𝟐𝟐𝟔
𝟖𝟕𝑭𝒓

→
142
60𝑁𝑑
0
+1𝑒
+ +𝟏𝟎𝒆
+ 226
86𝑅𝑛
5. How much fissionable material is required to have a selfsustaining reaction? Critical mass
6.
Fission Splitting of
Nuclear energy/power
Fusion
atoms
Putting atoms
together
plants
Sun and stars
7. Draw a magnetic field with a positive plate on the top and a
negative plate on the bottom. Show how the alpha particles,
beta particles, and gamma rays are affected by the charged
plates.
b. _______ is produced them thorium -234 emits an alpha
particle.
c. The decay of
𝟑𝟐
𝟏𝟓𝑷
 −𝟏𝟎𝒆 +
𝟑𝟐
𝟏𝟔𝑺
d. Einsteinium – 253 is bombarded by an alpha particle.
It will release one neutron.
𝟐𝟓𝟑
𝟗𝟗𝑬𝒔
+ 𝟒𝟐𝑯𝒆  𝟏𝟎𝒏 +
𝟐𝟓𝟔
𝟏𝟎𝟏𝑴𝒅
8. What is the main difference between a nuclear reaction and a
chemical reaction? What part of the atom is involved in
these types of reactions? Nuclear rxns happen in the
nucleus, releasing lots of energy as the nucleus splits or
fuses. Chemical reactions happen with the electrons,
bonds are being broken or formed.
9. There are some elements within the periodic table that do not
occur in nature, can you list a few? Technetium,
neptunium, elements 93 and up…
10. How can synthetic elements be produced? Bombarding an
atom with a neutron or alpha particle.
11. A 5.0 g sample of Lead-210 decays to approximately .63 g.
How much time has passed if Lead-210 has a half-life of 22
years? 65.7 or approximately 66 years
12. The half-life of radium-226 is 1600 years. How many grams
of a 0.25g sample will remain after 4800 years? 0.031g
13. Sodium-24 has a half-life of 15 hours. How much sodium-24
will remain in an 18.0g sample after 60 hours?
1.13 g
17. What is the difference between hydrogen-3 and hydrogen-1?
2 neutrons more in the hydrogen-3
18. Write the nuclear symbol for Iron-56.
How many Protons?____26______
𝟓𝟔
𝟐𝟔𝑭𝒆
How many neutrons? ___30_______
How many electrons? ___26_______
19. What kinds of emissions can cause radiation sickness?
Alpha, beta, gamma
20. Define Free Radicals and describe why they are dangerous.
Electron deficient, very reactive
21. List the characteristics of a diagnostic tracer.
Short ½-life, nontoxic daughter
14. The half-life of radon-222 is 3.823 days. What was the
original mass if 0.050g remains after 7.646 days?
.2 g
15. The half-life of tritium ( 31𝐻 ) is 12.5 years. Suppose you have
a sample containing .020 moles of tritium. How many years
would be required to reduce your sample to 3.125 x 10-4
moles?
75 years
16. How many neutrons are produced in each of the following
fission reactions?
90
147
1
1
a. 239
94𝑃𝑢 + 0𝑛  38𝑆𝑟 + 56𝐵𝑎 1 + 3 0𝑛
b.
235
1
92𝑈+ 0𝑛

72
30𝑍𝑛
1
+ 160
62𝑆𝑚 + 4 0𝑛
22. List the characteristics that are important for radioisotope
dating.
Long ½-life