1. You Will Need:
1. Pencil, Text Book- Periodic Table,
Colored Pencils
2. Ionic & Covalent Bonding 1 pages-2
sides (pgs 7 & 8 of packet)
4. Test #2 Signature and Corrections–
Due NOW

2. Please SCHEDULE:
1. To take Retake Test #2
• 129/185 or lower
2. Starts Thursday of this week
3. Parent Signature and
Corrections – due Today.

3. You will need 100 3 x 5 cards
1. Print out Questions & Answers hyperlinked
on Learning Point
• Glue, Staple or Tape Questions on
the Front and Answers on the back
OR
• You can write out the questions &
answers
2. Due at the beginning of class on
Friday
3. Quiz on Friday

4. Forming Sodium Chloride
http://www.youtube.com/watch?v=2mzDwgyk6QM
Before (pg. 233) After
Questions: Questions:
1)Why does Sodium become an Ion? 1)Why do Sodium and Chlorine bond?
2)Is it Positive or Negative? Why? 2)What is the overall charge of the
3)Why does Chlorine become an Ion? compound?
4)Is it Positive or Negative? Why? 3)Does NaCl have the same
characteristics as Na and Cl?
4)What are some unique characteristics
of NaCl?

5. Question Answer
Characteristics of Covalent bonds • Valance electrons are shared
• More often between nonmetal
• Low melting and boiling point
• Free flowing but can be brittle
• Form molecules
• Do not have a specific shape - flexible
View Video – Covalent Bonding –
hyperlinked on Learning Point. How many types of covalent bonds are shown in the
http://www.youtube.com/watch?v=1wpDicW_MQQ
video clip? ______

6. C 12 H 22 O 11
C 6 H 10 O 5

7. http://www.youtube.com/watch?v=ulyopnxjAZ8&feature=relmfu
Drawing Lewis Dot Diagram Bonds
Molecule Illustration Explanation Electron Dot (Color Code each
element)
1. What kind of bond does
Hydrogen & Oxygen
make?
2. How do you know?
P=8
N=8 3. Why does one Oxygen
bond with two Hydrogen
P=1 P=1
atoms?
N=0 N=0

8. http://www.youtube.com/watch?v=7DjsD7Hcd9U
How do we determine the type of • Identify class of elements
bond in a compound? • Same class usually covalent
• Opposite class usually ionic
• Calculate the electronegativity factor
What is ELECTRONEGATIVITY? A measure of how much an element
wants an electron
P=8
How do you know the
N=8 Look it up (see next slide)
electronegativity factor of an
element?
P=1 P=1
N=0 N=0
What are the determining values for 0-0.4 = Non-polar covalent
each type of bond? .41-2.0 = Polar covalent
>2.0 = Ionic

9. ELECTRONEGATIVITY
VALUES
0-0.4 = Non-polar covalent
.41-2.0 = Polar covalent
>2.0 = Ionic
http://www.tutor-homework.com/Chemistry_Help/electronegativity_table/electronegativity.html

10. Let’s try a couple:
H2O Calculate the electronegativity factor
H = 2.2
O = 3.44
3.44 – 2.2 = 1.24 Polar
NaCl P=8 Na = .93 Covalent
N=8
Cl = 3.16
P=1 P=1
3.16 - .93 = 2.23 Ionic
N=0 N=0
0-0.4 = Non-polar covalent
.41-2.0 = Polar covalent
>2.0 = Ionic

11. Homework:
1) Ionic and Covalent Bonding – Due
Tomorrow
2) STAR Cards #1-30 – on 3x5 cards
– Due Friday at the beginning of
class
3) Study Cards 1-30 for Quiz on
Friday