Audio visual focus module, atomic spectra, Q. 42

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Megan Singer 3D
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Audio visual focus module, atomic spectra, Q. 42

Postby Megan Singer 3D » Sat Oct 17, 2020 12:20 am

Can someone help me solve this problem from the audio visual focus modules?

42. An excited hydrogen atom emits light with a frequency of 1.14 x 10^14 Hz to reach the energy level n = 4. In what principle quantum level did the electron begin?

Options include n=5, n=6, n=4, and n=7.

Anh Trinh 1J
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Re: Audio visual focus module, atomic spectra, Q. 42

Postby Anh Trinh 1J » Sat Oct 17, 2020 12:55 am

For this question, I used the Rydberg equation and . First, you have to find the energy in energy level. Equation is . Plank Constant is and Rydberg constant is . After plugging in the constants and n, energy would then be . Then you can use the Rydberg equation to find the initial energy level. The Rydberg equation is . n=4 is the final energy level, so it would be . After all the calculations, would be 6.

There's another way you could also solve this problem:








Last edited by Anh Trinh 1J on Sat Oct 17, 2020 8:08 pm, edited 2 times in total.

Madison Muggeo 3H
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Re: Audio visual focus module, atomic spectra, Q. 42

Postby Madison Muggeo 3H » Sat Oct 17, 2020 10:23 am

Thank you guys for this post! I was confused and the explanation really helped :)


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