DO NOW WEDNESDAY Open up to the Periodic Table you were given yesterday and color it like the one shown below.

Today’s PLAN To identify properties of groups/families within the periodic table. To predict an element’s properties based on its location on the periodic table. Todays DO We will complete a graphic organizer about the groups of elements on the Periodic Table and their properties. We will practice identifying elements and their properties using the Periodic Table.

The Periodic Table

Why is the Periodic Table important to me? You get to use it on your Unit test. It organizes lots of information about all the known elements. It allows us to make predictions about elements we may know nothing about.

Here is a “periodic” table we are all familiar with.. What is it?

Certain information is missing. Can you predict the missing data? How? ? ??

Organization of the Periodic Table One way the Periodic Table is organized allows us to classify an element as a metal, nonmetal, or metalloid and make predictions about the physical properties of elements based upon this classification.

Metals Location : on the LEFT side of the Staircase line and the bottom two rows Physical Properties : good conductors, shiny, malleable, ductile, high density, high melting point Examples include: Sodium, Potassium, Aluminum, Gold, and Silver Uses : wires, cans, nutrients in our bodeis

Metalloids Location : Elements that border the Staircase line on either side (except Aluminum) Physical Properties : semi-conductors, some are shiny, not malleable, not ductile Examples include Boron, Silicon, Arsenic, Antimony, and Tellurium Uses : computer chips, poison, treated wood

Nonmetals Location : on the RIGHT side of the Staircase line Physical Properties : Poor conductors, gases or brittle solids with low melting points Examples : Carbon, Nitrogen, Oxygen, Phosphorus, Chlorine, Iodine, Fluorine Uses : nutrients in your body, kill germs in pool water and cuts in your skin, toothpaste to kill germs

Organization of the Periodic Table The Periodic Table is also organized into 18 different columns called groups or families. One of these groups is very unique because it contains only gases that do not react at all under normal conditions. These are the ONLY elements on Earth that will not react with other elements. They are called the Noble Gases.

The Noble Gases Location : Elements in group 18 (last column on Periodic Table) Physical Properties : VERY unreactive, gases at room temperature, poor conductors Examples include Helium, Neon, and Argon Uses : lighted “ neon ” signs, blimps, and V-day balloons

Periodic Table Practice 1. I am a solid that conducts electricity, is malleable and very shiny. What am I? A.Chromium (Cr)C. Boron (B) B.Helium (He)D. Oxygen (O) 2.I am a gas that is a poor conductor and very unreactive. What am I? A.Iron (Fe)C. Silicon (Si) B.Argon (Ar)D. Carbon (C) ✔ ✔

Periodic Table Practice 3. Which of the following would be physical properties of Zinc (Zn)? A.Gas that is unreactive B.Solid that has a low melting point C.Solid that is shiny and malleable D.Gas that is a poor conductor ✔

Periodic Table Practice 4.Which of the following would be physical properties of Radon (Rn)? A.Solid that has a high melting point B.Solid that is malleable and ductile C.Solid that is brittle D.Gas that is very unreactive ✔

Periodic Table Practice 8.Give at least 4 physical properties of Gallium (Ga). Explain how you knew. Gallium is a solid that is shiny, malleable, ductile, and a good conductor. I know this because Gallium is a metal and these are physical properties of metals.