1. Do Now
If you have not submitted your reference page do so BEFORE the bell rings.
You do this by clicking on Submit Assignment, then Resources, then Apps, choose Google Drive, check the box next to your Google Doc and hit Upload.
Place your cube on the cart on the respective shelf for your period.
Make sure your scoring guide is placed under your cube.

2. Ion Formation & Element Classification

3. Learning Targets I can explain why atoms form ions.
I can determine the ion formation for the first 20 elements.
I can differentiate between a metal, nonmetal and metalloid (semi-conductor).

4. The Role of Electrons
The periodic trends in the periodic table are the result of electron arrangement
Chemical properties are determined by valence electrons , which are located in the outermost energy level .
Elements in a group have chemical and physical properties in common because they have the same number of valence electrons.

5. An element’s electron arrangement determines its location in the periodic table

6. Ions What is an ion? An atom with a charge (+ or -)
Why do atoms form ions?
To have a filled outermost energy level
How does an atom become an ion?
Atoms gain or lose e-
What electron configuration does an ion possess?
Electron configurations of noble gases have a full outer shell = stable 

7. Octet Rule
Elements lose, gain, or share electrons to form the required octet (8) in their highest remaining energy level.

8. Ion formation How to make Li look like He? LOSE AN ELECTRON! Li He 3p+

9. Equation of ion formation+ Li
3p+ Li
3p+ +
Li  Li e-
CATION = atom with a POSTIVE charge

10. Ion formation How to make O look like Ne? GAIN 2 ELECTRONS! O Ne 8p+

11. Equation of ion formation2- O
8p+ O
8p+ +
O + 2e-  O2-
ANION = atom with a NEGATIVE charge

12. How are Elements Classified?

14. Metals Most of the elements Shiny Malleable
can be pounded into thin sheets
Conduct heat and electricity
Ductile
can be stretched into thin wires

15. Nonmetals Right side of periodic table Dull Brittle
Poor conductors of heat and electricity (insulators)
Not ductile or malleable
Sulfur
Graphite

16. Semiconductors AKA Metalloids
Conduct electricity under certain conditions
Share properties with metals and nonmetals
Ductile and malleable
Solids that can be shiny or dull

17. Learning Target Checkpoint
Why do atoms form ions?
What is the difference between metals, nonmetals and metalloids?

18. What Do I Do Now? Complete the Ion Formation Worksheet
Use the resources on the teacher webpage to help you
Use these Mass Numbers:
Beryllium: 9
Boron: 11
Nitrogen: 14
Oxygen: 17
Fluorine: 19