Day 1: 2/4/11

Big Idea (for this unit): Periodic trends in the properties of atoms allow for the prediction of physical and chemical properties.

Today’s Concept: Trends in the periodic table can predict the properties and behaviors of elements.

At the end of today, you will be able to: 1. know that the boxes on the Periodic Table

are each for a different element.2. Know what an element is.3. conduct tests for physical and chemical properties.4. distinguish between physical and chemical properties.

Opener: Answer the “What Do You Think?” question in your packet. Discuss your answer in small groups and as a class.

For You To Do: Test for physical and chemical properties of metals and nonmetals in the lab. Complete this section of the packet.

Discuss observations as a class. Powerpoint presentation on elements and properties Closure Question: What is the difference between a

chemical and a physical property? Take Home Assignment: Safety Poster due Tuesday.(FYI) Next class – 10th Grade Pre-test for Chemistry (it

doesn’t count for a grade). The Chemistry teachers want to know how much you know about Chemistry before taking our course so that we may know what areas to focus on.

Element: any material that cannot be broken down by chemical means.

Physical Property: a property that can be measured without causing a change in the substance’s chemical composition

Chemical Property: a characteristic that a substance undergoes in a chemical reaction that produces new substances

Luster (shiny): the reflection of light from the surface of a material described by its quality and intensity

Ductility: a property that describes how easy it is to pull a substance into a new permanent shape, such as, pulling into wires.

Malleability: the ability to be hammered into a shape without breaking.

Reactivity: a property that describes how readily a material will react with other materials.

http://www.youtube.com/watch?v=d0zION8xjbM

Physical Properties:1.Color2.Conductivity3.Physical state at

room temperature (solid, liquid, or gas

4.Luster5.Malleability6.Ductility

Chemical Properties:1.Reacts with air2.Reacts with acid

What is the difference between a physical property and a chemical property?