You Will Need:
1. Pencil, Text Book- Periodic Table,
2. Ionic & Covalent Bonding Pgs. 1-10
(Pick-up from bookshelf last week and
3. Log #3 – update with points
You will need 100 3 x 5 cards
1. Print out Questions & Answers hyperlinked on
• Glue, Staple or Tape Questions on the
Front and Answers on the back
• You can write out the questions & answers
2. Due at the beginning of class on Friday
3. Quiz on Friday
Forming Sodium Chloride
Before (pg. 233) After
1)Why does Sodium become an Ion?
2)Is it Positive or Negative? Why?
3)Why does Chlorine become an Ion?
4)Is it Positive or Negative? Why?
1)Why do Sodium and Chlorine bond?
2)What is the overall charge of the
3)Does NaCl have the same
characteristics as Na and Cl?
4)What are some unique characteristics
Molecule Illustration Explanation Electron Dot (Color Code each
1. What kind of bond does
Hydrogen & Oxygen
2. How do you know?
3. Why does one Oxygen
bond with two Hydrogen
Drawing Lewis Dot Diagram Bonds
How do we determine the type of
bond in a compound?
• Identify class of elements
• 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
How do you know the
electronegativity factor of an
Look it up (see next slide)
What are the determining values for
each type of bond?
0-0.4 = Non-polar covalent
.41-2.0 = Polar covalent
>2.0 = Ionic