Name _______________________________________________
Period _______________
Reactions Review – PAP
Directions: Identify the following as alpha, beta, gamma, or neutron.
1.
1
0
n
2.
0
1
e
3.
4
2
He
4.
0
0
γ
5. Nuclear decay with no mass and no charge
6. An electron
7. Least penetrating nuclear decay
8. Most damaging nuclear decay to the human body
9. Nuclear decay that can be stopped by skin or paper.
10. Nuclear decay that can be stopped by aluminum.
Complete the following nuclear equations.
42
11.
19
0
K →
9
13.
4
-1
__________
12.
Be
→
Li
3
4
4
Pu →
94
9
He + __________
2
235
231
Be + __________
14.
He + __________
16. __________ →
92
U → _________ +
Th
90
4
6
15.
239
e +
→
2
142
Ba +
56
91
36
1
Kr + 3
n
0
Nuclear Decay Series
238
92U



↑
↑
↑

234
90Th

234
91Pa

The figure maps the radioactive decay of
uranium-238 to lead-206. Use the figure to
answer the following questions.
234
92U

218
 
84Po
↓
214
82Pb



↑
↑
↑

222
88Rn

226
90Pa




↑
↑
↑

214
206
83Bi
82Pb

214
84Po



↑
↑

210
84Po

↓
230


92Th
17. How many alpha particles are produced
as one atom of uranium-238 decays to an atom
of lead-206?
18. How many beta particles?
19. Explain why lead-206 is a stable
isotope.
210
82Pb
↓


20. When protactinium-229 goes through
two alpha decays, francium-221 is formed.
210
83Bi
Stable Iosotope
21. Write the nuclear equation for the decay of Po-210 if it undergoes 2 consecutive alpha decay followed by a beta
decay followed by another alpha decay.
22.
The decay chain (or series) of uranium-238 is shown
in the following figure. What is the final product in
this decay series?
23.
Using the figure on the previous page, list each type of decay that uranium-238 goes through to become
lead-206.
24 Determine whether the following equations represent fission or fusion.
3 He + 3 He → 4 He + 21 H
2
2
2
1
235
1
92U
1H
+
+
1
1 n
0
1H
→
→
90
2 H
1
38Sr
+
+
143 Xe
54
+ 310n
0 β
+1
Balancing Equations
1.
NaCl
+
H2SO4
2. Sb
+
Cl2

SbCl3
3. H2
+
Cl2

HCl
4. HCl
+
MnO2 
MnCl2 +
5. HCl
+
Ca(ClO)2

6. CaF2
+
H2SO4 
HF
7. NaCl
+
H2O

NaOH +

KCl
+
8. KClO3
9. SnCl2
+
10. HgO
11. NaBr
+

HgCl2 
Na2SO4
+
HCl
H2O
+
Cl2
CaCl2
+
H2O
+
+
CaSO4
+
Cl2
H2
O2
SnCl4 +

Hg
+
O2
Cl2

NaCl
+
Hg2Cl2
Br2
Cl2
Writing Chemical Equations using formulas and symbols. Balance !!!!!
1. When solid magnesium carbonate is heated, it produces solid magnesium oxide and carbon dioxide
gas.
2. Aqueous potassium bromide added to aqueous lithium iodide makes aqueous lithium bromide and
aqueous potassium iodide.
3. When aqueous solutions of silver nitrate and calcium chloride are combined, aqueous calcium nitrate
and silver chloride (a precipitate) are formed.
4. Aqueous potassium sulfate plus aqueous magnesium chloride makes a precipitate of magnesium sulfate
and aqueous potassium chloride.
5. When aqueous solutions of iron (III) nitrate and sodium hydroxide are combined, the result is a
precipitate, iron (III) hydroxide and aqueous sodium nitrate.
Writing Chemical Equations in words.
6. 2Na3PO4(aq) + 3CaCl2  Ca3(PO4)2 ↓ + 6NaCl(aq)
7. CaCO3(s)  CaO(s) + CO2(g)