9/16/13. cis4 chem talk pages make a table pg 42-43 word- meaning –example/picture c1s6 chem talk...
TRANSCRIPT
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9/16/13
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CIS4 Chem talkPages Make a table Pg 42-43Word- meaning –example/picture
C1S6 Chem talk notes Pg 63-64
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C1S4 Properties of Matter Pg 42-43
Word Meaning Example
Texture
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Atlantic Coast High
School
Section 6 Metals and Nonmetals (pp.60-67)
Chapter 1 Movie Special Effects
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What do you see? (WDYS)
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What do you think? (WDYT)
• Why are frying pans made of metal and baking dishes often made of glass or ceramic?
• Could a baking dish be made of metal? Could a frying pan be made of glass or ceramic?
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Investigate
• Metals vs. nonmetals
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Data Table
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C1S6 Chem Talk Pages 63-64
Read the section.1. Make three columns and list the
properties of metals,nonmetals and metalloids.
Metals Metalloids
Non Metals
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Properties of Metals
Metals are good conductors of heat and electricity Metals are malleable Metals are ductile Metals have high tensile strength Metals have luster
Chem Talk
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Electron Sea Model
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Copper, Cu, is a relatively soft metal, and a very good electrical conductor.
Mercury, Hg, is the only metal that exists as a liquid at room temperature
Chem Talk
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Properties of Metalloids
They have properties of both metals and nonmetals.Metalloids are more brittle than metals, less brittle than most nonmetallic solids Metalloids are semiconductors of electricity Some metalloids possess metallic luster
Chem Talk
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AlloysAn alloy is a substance composed of two or more metals, or of a metal or metals with a nonmetal, and still maintain the characteristic properties of metal
Common Alloys• Bronze - probably the first
intentionally created alloy • Steel • Brass • Sterling silver (92.5% silver, the
rest usually copper) • 10K (or 12K, or 14K, or anything
under 24K) gold • The "nickel" nickels are made of
(mostly copper)
Chem Talk
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Nonmetals
Nonmetals are poor conductors of heat and electricity Nonmetals tend to be brittle Many nonmetals are gases at room temperature
Carbon, the graphite in “pencil lead” is a great example of a nonmetallic element.
We will focus on
nonmetals later…
Chem Talk
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What did I miss in this section?
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Checking Up (CUQ) p 64
2 column format!!! Question on left, answer on
right
1. Why is it important to prevent the oxidation of metals used in construction?
2. Explain the meaning of an alloy.
3. Why are alloys used?
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What do you think now?(WDYTN)
• Using what you now know about metals and nonmetals, answer these questions. Then, classify the following unknown element as a metal or a nonmetal and explain your reasoning.– Unknown element: nonconductive,
brittle, and nonreactive to oxygen.
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Chem To Go (CTG)
Questions 1-6 p 66
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Inquiring Further (IF)
• Missed lab? Complete Inquiring further on page 67….
• If you did do the lab, you can still complete this “IF” for extra credit
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Home work
• Watch the videos on physical and chemical properties and create a T-chart to show the differences between the two.
• Take down notes in your own format from the power points.(3 PPoints).