# AP Chemistry – Class 40

Dates

- Periods E/F – Tuesday, November 20th

BIG QUESTION: how are the electrons in an atom identified?

ACTIVITY

- write down your identifying information
- address, phone, school, height
- Could you be found based solely on this information?

INFORMATION

- 4 Quantum Numbers (n, L, mL, ms)
- Each has allowed values
- n = integers starting @ zero
- L = integers from 0 to (n-1)
- mL = integers between +L and -L
- ms = +1/2 or -1/2

ACTIVITY

- write the 4 quantum numbers for electrons that have n = 0 through n = 3
- what do you notice about the combinations?

TEST RETAKE

- Wednesday, November 28th @ 7:00
- 45 minutes
- 3 Questions – same topics
- I will average the scores
- Practice problems from chapter
- Look at solution online

Homework

- Ch. 7 Notes (due after Thanksgiving Break)
- Quantum Theory Videos Notes (Cross-reference Page)
- Reminder – all notes typed and placed in Dropbox as PDF
- Reminder – notes on big ideas and terms, not every formula

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