Which of the following energy transitions of the hydrogen atom emits light in th

Question

Which of the following energy transitions of the hydrogen atom emits light in the visible region?

n = 5 to n = 3

n = 2 to n =1

n = 5 to n =1

n = 5 to n = 2

n = 4 to n = 1

n = 2 to n = 5

two of these are correct

Q2)

What is the wavelength ( in nm) for a photon with a frequency of 7.89x1015 Hz.

( Answer should be in decimal form to one decimal place, NO Units)

ANSWER: 38.0 <-- Just want to verify this answer

Q3)

a.

n = 5 to n = 3

b.

n = 2 to n =1

c.

n = 5 to n =1

d.

n = 5 to n = 2

e.

n = 4 to n = 1

f.

n = 2 to n = 5

g.

two of these are correct

Given the hydrogen spectra 397 410 434 486 656 What is ni (or n), using the Rydberg equation, for the hydrogen spectral line that occurs at 410 nm? OA, ni = 4 O B.ni= 7 OC.ni = 5 OE.ni = 6

Explanation / Answer

NOTE that there is only one type of process tha twill show you visible light:

those are the balmer series

Balmer Series

n=3 to n=2 ----> WL = 656 nm

n= 4 to n=2  ----> WL = 486nm

n=5 to n=2  ----> WL = 434nm

n=6 to n=2  ----> WL = 411nm

Therefore, your ansers:

only

n = 5 to n = 2

NOTE: please consider posting multiple questions in multiple set of Q&A, we ar enot allowed to answer to multiple questions in a single set

d.

n = 5 to n = 2

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