# 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?

###### FREE Expert Solution
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###### FREE Expert 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:

$\overline{){\mathbf{c}}{\mathbf{=}}{\mathbf{\lambda \nu }}}\phantom{\rule{0ex}{0ex}}\frac{\mathbf{c}}{\mathbf{\lambda }}\mathbf{=}\frac{\overline{)\mathbf{\lambda }}\mathbf{\nu }}{\overline{)\mathbf{\lambda }}}\phantom{\rule{0ex}{0ex}}\overline{){\mathbf{\nu }}{\mathbf{=}}\frac{\mathbf{c}}{\mathbf{\lambda }}}$

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

81% (233 ratings)
###### Problem Details

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?

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Bohr Equation concept. You can view video lessons to learn Bohr Equation Or if you need more Bohr Equation practice, you can also practice Bohr Equation practice problems .

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Based on our data, we think this problem is relevant for Professor Hempstead's class at York University.