Solution for problem 42P Chapter 9
Solved: Two of the emission wavelengths in the hydrogen emission spectrum are 656 nm and
Introductory Chemistry | 5th Edition
Two of the emission wavelengths in the hydrogen emission spectrum are 656 nm and 486 nm. One of these is due to the n = 4 to n = 2 transition, and the other is due to the n = 3 to n = 2 transition. Which wavelength corresponds to which transition?
Solution 42P
Here, we are going to identify which of the given wavelengths corresponds to the given transitions.
Step 1:
It is already known that, when an electron jumps from a lower orbit to a higher orbit, it absorbs energy whereas when the electron jumps from higher orbit to lower orbit, it emits energy.
Thus, n = 4 to n = 2 transition corresponds to higher emission of energy compared to n = 3 to n = 2 transition.
Chapter 9, Problem 42P is Solved
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Solved: Two of the emission wavelengths in the hydrogen emission spectrum are 656 nm and