The wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state is: ?
Savanne1bo
Answered question
2023-01-22
A)194.8 nm
B)490.7 nm
C)913.3 nm
D)121.8 nm
Answer & Explanation
Dane Brennan
Beginner2023-01-23Added 9 answers
Step 1: Given Data:
Hydrogen has an atomic number 1.
Step 2: Formula used:
where
is wavelength of the wave
R is Rydberg constant i.e.
Z is atomic number of the element
is lower energy level and is higher energy level.
Step 3: Calculating the wavelength of the photon emitted by a hydrogen atom when an electron makes a transition from n = 2 to n = 1 state,
Therefore, option D is the correct answer.
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