Download chestery lesson 1

3 The Structure of the Atom
ENCOUNTER THE PHENOMENON
Write the Encounter the Phenomenon question for this module.
Use the “What I Know” column to list the things you know about the Encounter the Phenomenon
question. Then list the questions you have about the Encounter the Phenomenon question in the
“What I Want to Find Out” column. As you read the module, fill in the “What I Learned” column.
W
What I Want to Find Out
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K
What I Know
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L
What I Learned
The Structure of the Atom
1 Early Ideas About Matter
REVIEW
VOCABULARY
theory
Recall the definition of the Review Vocabulary term.
theory
NEW VOCABULARY
Define each New Vocabulary term.
Dalton’s atomic theory
Dalton’s atomic theory
WORD ORIGIN
atom
atom
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Science Notebook • The Structure of the Atom
42
1 Early Ideas About Matter (continued)
Summarize the effect that Aristotle had on the atomic theory
proposed by Democritus.
List the main points of Dalton’s atomic theory.
1.
2.
3.
4.
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5.
Get It?
Explain how Dalton's theory of the atom and the
conservation of mass are related.
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43
1 Early Ideas About Matter (continued)
Discuss Dalton’s ideas by completing the following paragraph.
, Dalton was able to
After years of studying
of the elements involved in the
accurately determine the
, which helped to
reactions. His conclusions resulted in the
explain that
in chemical reactions separate,
, but are not created,
, or
, or
.
Compare and contrast the atomic theories of Democritus and Dalton.
Mark an X under each name if a statement applies to that person’s
theory.
Statement
Democritus
Dalton
All matter is made of tiny pieces.
Matter is made of empty space
through which atoms move.
Atoms cannot be divided.
Atoms cannot be created.
Atoms cannot be destroyed.
Different atoms combine in
whole-number ratios to form
compounds.
Different kinds of atoms come in
different sizes and shapes.
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Copyright © McGraw-Hill Education
The properties of atoms vary
based on shape, size, and
movement.
1 Early Ideas About Matter (continued)
CHECK YOUR PROGRESS
1. Summarize how matter was described by many early Greek philosophers.
2. Define atom using your own words.
3. Summarize Dalton’s atomic theory.
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4. Explain what is meant by the conservation of mass and how it is useful to scientists
studying chemical reactions.
5. Design a concept map that compares and contrasts how early Greek philosophers
and how Democritus, Aristotle, and Dalton viewed matter.
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45