9/16/13

CIS4 Chem talk Pages Make a table Pg Word- meaning –example/picture C1S6 Chem talk notes Pg 63-64

C1S4 Properties of Matter Pg WordMeaningExample Texture

Atlantic Coast High School Section 6 Metals and Nonmetals (pp.60-67) Chapter 1 Movie Special Effects

What do you see? (WDYS)

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?

Investigate Metals vs. nonmetals

Data Table

C1S6 Chem Talk Pages Read the section. 1.Make three columns and list the properties of metals,nonmetals and metalloids. Metals Metalloids Non Metals

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

Electron Sea Model

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

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

Alloys An 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

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

What did I miss in this section?

Checking Up (CUQ) p 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?

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.

Chem To Go (CTG) Questions 1-6 p 66

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

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).