# 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?

__ radio

__ 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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