Calculate the energy of the photon emitted when an electron in a hydrogen atom moves from n=4 to n=3. We will assume your answer is in the form  _ . _ _ x 10 -19 J

Chemistry: An Atoms First Approach
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ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
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Chapter2: Atomic Structure And Periodicity
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Problem 46E: One type of electromagnetic radiation has a frequency of 107.1 MHz, another type has a wavelength of...
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Answer this as soon and quickly as possible. Ive read the honor code and it states that their can be up to three sub-questions on each single questions. So please answer all the questions provided, thank you

1. 

Calculate the energy of the photon emitted when an electron in a hydrogen atom moves from n=4 to n=3.

We will assume your answer is in the form  _ . _ _ x 10 -19 J

If is 9.99 x 10 -17 J, then answer only with 9.99

2. A hydrogen discharge lamp emits electromagnetic radiation with a wavelength of 1282.0 nm. If we know the principal quantum number of the lower energy level is n1 = 3 . What is n2?

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