Consider the image attached of part of the emission spectrum for a one-electron ion in the gas phase. All the lines result from electronic transitions from excited states to the n=3 state. The electronic transitions n=4 --> n=3 correspond to lines A and B. If the wavelength of line B is 142.5 nm, calculate the wavelength of line A.

Chemistry & Chemical Reactivity
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Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
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Chapter6: The Structure Of Atoms
Section6.7: One More Electron Property: Electron Spin
Problem 3.1ACP: Helium absorbs light at 587.6 nm. What is the frequency of this light?
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Consider the image attached of part of the emission spectrum for a one-electron ion in the gas phase. All the lines result from electronic transitions from excited states to the n=3 state.

The electronic transitions n=4 --> n=3 correspond to lines A and B.

If the wavelength of line B is 142.5 nm, calculate the wavelength of line A.

the n = 3 state.
B
Wavelength·
Transcribed Image Text:the n = 3 state. B Wavelength·
Expert Solution
Step 1

As A and both lines corresponds to  the transition between same levels n=4--> n= 3

Thus they both thus both has same wavelength. 

Thus both are corresponds to same line 

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