1. Launch: 10/23
 Grab your binder and immediately take a seat
 Sit quietly and read the statement on the slip

2. Detectives
 Everyone stands up
 Walk around the classroom and find another
student
 Read your statement out-loud to the other student
 Listen as the other student reads to you
 Swap slips and find a new student
 Repeat!

3. What is are the 3 types of
chemical bonds?
Mr. Heffner
10/22/09

4. Jigsaw Activity
 In this activity, the class will break into three
groups.
 Your first task is to work with your group and
become an expert on a type of chemical bond.
 Then you will be responsible for teaching others
about what you learned.

5. Jigsaw Activity
 Part I: Reading (12 min)
1. Read your assigned passage silently and
individually underline important words (4 min)
2. As a group, point out important parts of the
passage and discuss what they mean (2 min)
3. As a group, fill in the graphic organizer based on
the information from your passage (6 min)

6. Jigsaw Activity
 Part II: Presenting (9 min)
1. First, the experts on ionic bonding will present
their findings while the group members take notes
(3 min)
2. Second, the expert on covalent bonding will
present their findings while the group members
take notes (3 min)
3. Third, the experts on metallic bonding will present
their findings while the group members take notes
(3 min)

7. Ionic bonds
 What happens to the electrons?
 They are exchanged
 What types of elements do they form between?
 Metals and nonmetals
 What is an example?
 Salt = NaCl

8. Covalent bonds
 What happens to the electrons?
 They are shared
 What types of elements do they form between?
 Nonmetals and nonmetals
 What is an example?
 Stomach acid = HCl

9. Metallic bonds
 What happens to the electrons?
 They are shared, free in the “sea”
 What types of elements do they form between?
 Metals and metals
 What is an example?
 Copper wire = Cu

10. Guided Practice
 Are the following compounds ionic, covalent, or
metallic?
1. NaI
 Na = metal
 I = nonmetal
Ionic
2. HF
 H = nonmetal
 F = nonmetal
Covalent
3. Au
 Au = metal Metallic

11. Practice Questions
 Practice Questions Worksheet
 Answer in complete sentences!

12. Exit Slip
1. Electrons are exchanged
a. in covalent bonds.
b. in metallic bonds.
c. in ionic bonds.
d. none of the above

13. Exit Slip
2. Ionic bonds form between which two types of
elements?
a. halogens and noble gases
b. nonmetals and nonmetals
c. metals and nonmetals
d. transition metals and alkali metals

14. Exit Slip
3. What type of bond is found in Br2?
a. metallic
b. covalent
c. Ionic
d. none of the above

15. Exit Slip
4. Which of the following is an example of a metallic
compound?
a. Fe
b. CCl4
c. MgBr2
d. Xe

16. Exit Slip
5. Which of the following is an example of a covalent
compound?
a. HBr
b. NaI
c. Ag
d. AlCl3

17. Homework
 Finish practice questions
 Mind map