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# Line, Wavelength, State of Origination and Region

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A line in the Brackett series of hydrogen has a wavelength of 4052 nm. From what state did the electron originate?
n_1 = ________

In what region of the electromagnetic spectrum is this line observed?
__ gamma rays
__ microwaves
__ ultraviolet
__ infrared
__ visible
__ X rays

https://brainmass.com/chemistry/modern-quantum-theory/wavelength-state-origination-region-504186

#### Solution Preview

SOLUTION:
Use the Rydberg equation:
1/lambda = R (1/n12 - 1/n22)
where:
R = Rydberg constant = 1.097 x 107 m-1
lambda = wavelength in meter
n2 > n1
Converting ...

#### Solution Summary

This solution shows how to calculate the state an electron originated in and how to figure out the region of the electromagnetic spectrum that this line is observed in.

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