1. Unit 1 Chemical Bonding: Ionic 1.2 What is the Octet Rule AIM: What’s so special about having a full octet? DO NOW: Draw a Lewis Dot Diagram of Oxygen What do you think oxygen prefers, to gain 2 more electrons or lose 6 and why? O

2. OCTET RULE Atom wants to have 8 valence electrons Definition X One valance electron

3. STABILITY an atom has a full octet Atoms bond to become stable When an atom is v Resistant to change v It can be achieved when v So…

4. ACTIVITY Which atoms are already have 8 valence electrons? Which group number is this? What group is this called? NeonXenon ArgonRadon Krypton v 18 v NOBLE GASES v

5. NOBLE GASES Considered ‘INERT’  not moving Have 8 valence electrons Are all stable Definition X

6. WHY ARE NOBLE GASES STABLE? They have max # of valence electrons Do not need to react ANSWER X

7. WHY DO ATOMS WANT TO HAVE AN OCTET? to become stable! To be stable = their goal! ANSWER X

8. NEXT STEPS Color the periodic table Answer the questions that follow KEY CONCEPT

9. NEXT Complete the INDEPENDENT PRACTICE When you are done, you may work on the following: CHEMISTRY VOCABULARY JOURNAL - you will be allowed to use this on your quizzes and (some of) your exams