1. Properties of Atoms

2. In order to talk about the properties of atoms we need to talk about this…
Why do we have a periodic table?
A man, whose identity will be revealed Monday during your projects...
He is heralded as not only one of the greatest contributors to chemistry, but to science in general.
So if the periodic table is his claim to fame, what is so great about the periodic table?
He was able to classify the elements by putting them into categories, groups

3. Families One way the periodic table is organized is in families?
Let’s drift away from chemistry for a minute

4. Inquiry Activity
Categorize the elements into as many groups as possible.
You are going to do an inquiry activity.
What does inquiry mean?
In your table groups, you will organize the elements, which are on these cards into 9 groups.
All the elements in your groups should have similar properties.
Everybody take out your crossword puzzles….on the back there is a periodic table
Ignore the directions underneath the table
On the periodic table outline the groups you come up with
Once you get those groups keep them out on your table until we finish going over it.

5. Inquiry Activity Categorize the elements into 9 groups
With the periodic table on the backside of your crossword:
Ignore the directions under the periodic table
Outline the groups you come up with
You are going to do an inquiry activity.
What does inquiry mean?
In your table groups, you will organize the elements, which are on these cards into 9 groups.
All the elements in your groups should have similar properties.
Everybody take out your crossword puzzles….on the back there is a periodic table
Ignore the directions underneath the table
On the periodic table outline the groups you come up with
Once you get those groups keep them out on your table until we finish going over it.

6. Families
Elements that are similar in atomic structure and reactivity, are located close together in families.
Families have the same two components:
oxidation number
# of valence electrons
Structure and reactivity

7. Families
So lets go over your categories

8. 5 Main Families Alkaline Earth Metals Noble Gases Alkali Metals
Halogens
Transition Metals
So there are 5 main families that we will focus on…
Lanthanides
Actinides

9. Alkali Metals Very reactive metals that do not occur freely in nature
Malleable, ductile, and are good conductors of heat and electricity

10. Alkaline Earth Metals
Not as reactive as Alkali metals, but also do not occur freely in nature
Ductile and malleable
Reacts easily with Halogens in water

11. Transition Metals Form colored compounds
Good conductors of heat and electricity
Ductile and malleable
They are less reactive than alkali metals
Includes:
Lanthanides
Actinides 

12. Halogens Highly reactive nonmetals
Exist as diatomic molecules in a gaseous state (Cl2, F2, I2, etc.)
Poisonous

13. Noble Gases
Nonreactive gases
Colorless and odorless gas

14. What Now?
Work on the Scientists Project with your groups

15. Properties of Atoms

16. Inquiry Activity Categorize the elements into 3 groups.
With the periodic table on the backside of your crossword:
Ignore the directions under the periodic table
Outline the groups you come up with

17. Metallic Properties

18. Metals Metals are… Solid Malleable and ductile
Have good electrical and thermal conductivity
Lustrous

19. Nonmetals Nonmetals are… mostly gases (not all)
Not malleable or ductile
Poor electrical conductivity
Dull

20. Metalloids Metalloids are… metallic in appearance brittle
behave like nonmetals
fairly conductive (semiconductors)

21. What Now?
Work on the Scientists Project with your groups