Table of contents

1. Intro to General Chemistry3h 48m
2. Atoms & Elements4h 16m
3. Chemical Reactions4h 10m
4. BONUS: Lab Techniques and Procedures1h 38m
5. BONUS: Mathematical Operations and Functions48m
6. Chemical Quantities & Aqueous Reactions3h 51m
7. Gases3h 49m
8. Thermochemistry2h 35m
9. Quantum Mechanics2h 58m
10. Periodic Properties of the Elements3h 9m
11. Bonding & Molecular Structure3h 29m
12. Molecular Shapes & Valence Bond Theory1h 57m
13. Liquids, Solids & Intermolecular Forces2h 23m
14. Solutions3h 1m
15. Chemical Kinetics2h 53m
16. Chemical Equilibrium2h 29m
17. Acid and Base Equilibrium5h 1m
18. Aqueous Equilibrium4h 47m
19. Chemical Thermodynamics1h 50m
20. Electrochemistry2h 42m
21. Nuclear Chemistry2h 34m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

9. Quantum Mechanics

Quantum Numbers: Principal Quantum Number

General Chemistry

9. Quantum Mechanics

Quantum Numbers: Principal Quantum Number

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Principal Quantum Number Example

Jules Bruno

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Here in this example question, it says, which of the following is a possible value for a principal quantum number shell? So here we have n equals negative 3, negative 4, 0, 11, and negative 7. Remember, we said that your principal quantum number n is connected to the periods or rows of the 7 rows, but in the 7 rows, but in the future, we're gonna we're gonna have 8, 9, 10 rows. It can continue onward. So here, theoretically, n equals any value from 1 to infinity. That means all these negative values would not work, and n cannot equal 0. Has to start off as 1 as a possible value. So the answer here would have to be option d. Theoretically, n can equal 11.

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