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 53m
7. Gases3h 49m
8. Thermochemistry2h 37m
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 36m
22. Organic Chemistry5h 7m
23. Chemistry of the Nonmetals2h 39m
24. Transition Metals and Coordination Compounds3h 16m

9. Quantum Mechanics

Bohr Model

General Chemistry

9. Quantum Mechanics

Bohr Model

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Multiple Choice

An electron in the n=6 level emits a photon with a wavelength of 410.2 nm. To what energy level does the electron move according to the Bohr Model?

n=5

n=3

n=2

n=4

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Verified step by step guidance

First, understand that the Bohr Model describes the electron transitions between energy levels in an atom, where the energy difference between levels is emitted or absorbed as a photon.

Use the Rydberg formula to calculate the wavelength of the emitted photon during the transition:

\frac{1}{λ} = R (\frac{1}{n^{2}} - \frac{1}{n^{1}})

, where

R

is the Rydberg constant,

λ

is the wavelength, and

n

₁ and

n

₂ are the initial and final energy levels.

Substitute the given wavelength (410.2 nm) into the Rydberg formula and solve for the final energy level

n

₂. Remember to convert the wavelength from nanometers to meters by multiplying by

10^{- 9}

Rearrange the equation to solve for

n

₂:

\frac{1}{n^{2}} = \frac{1}{λ} / R + \frac{1}{n^{1}}

. Calculate the value of

n

₂ using the known values.

Compare the calculated value of

n

₂ with the given options (n=5, n=3, n=2) to determine the correct energy level transition. The correct answer is n=4, which is not listed among the options, indicating a potential error in the problem statement.