Chemistry Practice Problems Bohr and Balmer Equations Practice Problems Solution: What is the frequency in Hz of the photon released...

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Solution: What is the frequency in Hz of the photon released when a hydrogen atom undergoes a transition from the excited state where n = 2 to the state where n = 1?

Problem

What is the frequency in Hz of the photon released when a hydrogen atom undergoes a transition from the excited state where n = 2 to the state where n = 1?

Solution

We’re being asked to calculate the frequency (Hz) of a photon released when a hydrogen atom undergoes a transition from an excited state.


Frequency can be calculated from wavelength and the speed of light:

c=λνcλ=λνλν=cλ


We’re going to use the Balmer Equation to calculate the wavelength which relates wavelengths to a photon’s electronic transitions.

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