Download Name Period ______ Due Date Review Stations Key Station 1

Unit 4: Splitting & Unstable Matter:
Atoms & Nuclear Chemistry
Name ________________________________________
Period ________ Due Date ______________________
Review Stations Key
Station 1: Parts of an Atom
PART I: Model of an Atom
Key:
= protons
= neutrons
= electrons
PART II: Questions
1. Protons and neutrons
2. C
3. A
Nucleus
4. +
5. –
6. An electron has a much smaller mass (1/1836 the mass of a proton or neutron) than a proton or neutron.
7. Protons and electrons
Station 2: Calculating Protons, Neutrons, and Electrons
Complete the following table.
Description
Hyphen Notation
Nuclear Symbol
An atom with a mass of 65 and an
Copper-65
atomic number of 29
An isotope with 33 protons, 42
neutrons, and 33 electrons
An atom that contains 64 neutrons
and has a mass of 113 amu
An atom with a nucleus that contains
80 protons and 118 neutrons
An isotope that is made up of 51
electrons and 51 protons
An atom that has 72 neutrons and 50
electrons
Arsenic-75
75
Indium-113
113
49In
33As
Mercury-198
Antimony-121
121
51Sb
Tin-122
122
50Sn
Hyphen Notation
Bohr Model
Nuclear Symbol
Lithium-6
6
3Li
Helium-4
4
2He
7
3Li
23
11Na
Station 3: Isotopes
1.
2.
3.
4.
5.
6.
1.
2.
3.
4.
5.
B
C
A
B
The isotope shown above has 16 protons,16 electrons, 18 neutrons, and a mass number of 34.
I and III &II and IV
Station 4: Average Atomic Mass
10.811 amu
28.088 amu
79.90 amu
a. 35.45 amu
b. Chlorine (Cl)
Potassium-39 because the average atomic mass is closer to 39 than 41.
Station 5: Radioactive Particles
Alpha
Beta
Gamma
2+ Charge
1- Charge
No charge
Helium Nucleus
Electron
Electromagnetic Radiation
4 amu
0.0055 amu
0 amu
Stopped by paper, wood, cloth, etc.
Stopped by aluminum or other
metals
Stopped by lead
Least dangerous to humans
Most dangerous to humans
alpha
beta
gamma
1.
2.
3.
4.
5.
6.
A
A
C
B
B
D
Station 6: Balancing Nuclear Equations
Balancing Nuclear Equations Answer Key
233U229Th  4 He
1)
92
90
2
2)
14C14 N 0e
6
7 1
16 N 0 e16O
3)
7
-1
8
192Pt 4 He188Os
4)
78
2
76
32P 0 e32S
5) 15
- 1 16
226 Ra4 He222Rn 0
6)
88
2
86
0
Station 7: Fusion vs. Fission
1. C
2. C
3. C
4. B
5. A
6. a. Fission
b. Fusion
Station 8: Half-Life
1. c
2. a If the isotope had a long half-life, it would stay in your body causing radiation poisoning or cancer.
3. Long half-lives because takes more time to decay.
4. a. 200 years
b. 17 grams
c. 150 years