1. ATOMIC CONCEPT SEPTEMBER 30, 2015

2. DO NOW– 9/30/2015 You are silent and seated In your Notebook, write the Header (Name, Today Date) and write today AIM (located on whiteboard) and then answer the following questions: ◦ Q1: what is ground state? ◦ Q2: In regard to the electrons located in the first and second shells, which electrons have more energy? ◦ Q3: How do you determine the number of valence electrons for an atom?

3. REMINDER QUIZ 3 MAKEUP AND RETAKE TODAY FROM 2:40 – 3:15PM QUIZ 4 THIS FRIDAY NOTEBOOK CHECK THIS FRIDAY

4. AIM IS THE GROUND STATE DIFFERENT FROM THE EXCITED STATE?

5. Excited State Electron Configurations TAKE 2 MINUTES TO READ AND ANNOTATE THIS SECTION SILENTLY

6. THE SCIENCE Sodium has an electron configuration of 2-8-1 ◦ Where can I find the electron configuration information? ◦ Is this excited or ground state? ◦ Why?

7. THE SCIENCE CONTINUE When the electron configuration changes for sodium to 2-7-2, what happens? ◦ Does the number of electrons change? ◦ Can an atom maintain this electron configuration? ◦ What happens when the electron loses energy?

8. GROUND VS EXCITED Nitrogen (2-5): Iron (2-7-15-2): Potassium (1-8-9-15): Lithium (1-2): Silver (2-8-18-18-1): Chromium (2-8-12-2):

9. WHAT IS THE GROUND STATE Aluminum (2-7-4):

10. WHAT IS THE GROUND STATE Aluminum (2-7-4): Arsenic (1-8-18-6): Chlorine (2-6-9): Copper (2-7-18-2) Sulfur (2-6-8): Iodine (2-8-16-18-9):

11. BOHR MODEL COMPLETE THE TABLE. ◦ CARBON ELECTRON CONFIGURATIO N EXCITED ELECTRON CONFIGURATION DIAGRAM (BOHR model)

12. SODIUM ELECTRON CONFIGURATIO N EXCITED ELECTRON CONFIGURATIO N DIAGRAM

13. POST LAB Q1 EXPLAIN THE DIFFERENCE BETWEEN GROUND STATE AND EXCITED STATE.

14. SUMMARY: TODAY LESSON

15. HOMEWORK REMINDER ◦ Review elements 1-6 ◦ Save the Scientist Performance Task is due TODAY by 5PM. Make sure you submit it via Google Drive