Download PreAP Chemistry Radioactivity WS Name Period ____ Match the

PreAP Chemistry Radioactivity WS
Name ____________________________________ Period ____
Match the statement in column A with the correct term from column B. Terms may be used more than once.
Column A
Column B
---------- 1. This radiation would be deflected towards a positively charged metal plate.
A. atom
---------- 2. Atoms with the same number of protons but different numbers of neutrons.
B. nucleus
---------- 3. High energy radiation that has no charge and no mass.
C. average atomic mass
---------- 4. The smallest particle of an element that retains the properties of that element.
D. isotopes
---------- 5. The weighted average mass of an element’s isotopes.
E. gamma rays
---------- 6. The center most part of an atom where the protons and neutrons are contained
F. alpha radiation
---------- 7. This radiation would be deflected toward the negatively charged metal plate
G. beta radiation
---------- 8. The rays and particles emitted by radioactive material
H. atomic mass unit
---------- 9. Equal to 1/12 the mass of a carbon -12 atom
I. radiation
---------- 10. Ray of radiation traveling from the cathode to anode in a ray tube
J. Dalton’s atomic
---------- 11. Process by which unstable nuclei lose energy to become more stable
theory
---------- 12. States all matter is composed of atoms
K. cathode ray
---------- 13. Process whereby some substances spontaneously emit radiation
L. radioactivity
---------- 14. The rays and particles that are emitted by a radioactive material
M. radioactive decay
---------- 15. A reaction that involves a change in an atom’s nucleus
N. nuclear reaction
---------- 16. Fast moving particles similar to electrons
Use the diagram to answer the questions, using a complete sentence.
17. Which plate do the beta particles bend towards? Explain.
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18. Explain why the gamma rays do not bend.
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19. Explain why the path of the beta particles bend more than the path of the alpha particles.
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Fill in the following chart:
Description (Composition)
Mass
Charge
Alpha
21
22
23
24
25
26
27
27
29
Beta
Gamma
Use the diagrams to answer the questions.
30. Finish the following nuclear equation for the reaction shown in part A of the diagram.
2
1
H
+
2
1

H
31. Is part A fission or fusion? Explain how you can tell. ___________________________________________________
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32. Finish the following nuclear equation for the reaction shown in part B of the diagram.
1
0
n
+
235
92
U

3
1
0
n
+
+
33. Is part B fission or fusion? Explain how you can tell. ___________________________________________________
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