Download Standard 2A Chemistry

The Atom and Atomic Theory Unit
Standard 2A Chemistry
Benchmark1: The student will understand the structure of the atom.
Standard 2B Physics
Benchmark 3: The student will understand fundamental interactions of matter and
energy.
Standard 7 History and Nature of Science
Benchmark 1: The student will develop an understanding that science is a human
endeavor that uses models to describe and explain the physical universe.
Resources:
 Textbook: p.311-314, 317-319
 green Science Plus: Technology and Society Sourcebook (wkbk) p.S68-S79
 Video: Atoms and Molecules
 internet (credible sites)
*Learning Target: I understand the structure of the atom
and the history of the atomic model.
Study Questions:
1. What is an atom?
2. What are the parts of an atom and their location in the atom?
3. What are the electrical charges of each part of the atom?
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4. What makes an atom neutral or stable?
5. What is an electron cloud?
6. What is the limit of the amount of electrons each energy level can hold?
7. What is the relationship between the energy of an electron and the energy level it
occupies?
8. What is an orbital?
The Atom and Atomic Theory Unit
9. What makes up most of the mass of the atom?
10. What makes most of the atom’s volume?
11. What are the 3 forces that hold an atom together? What parts of the atom do these
forces hold together?
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-12. What was Aristotle’s argument against the atom?
13. Who were the people that contributed to atomic theory and what did they
contribute to the model of the atom?
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14. Draw the atom models of the following scientists in the box:
Democritus’s
model
Dalton’s
model
Bohr’s
model
Thomson’s
model
Chadwick’s
model
Rutherford’s
model
Schrodinger’s
model