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atlantahead7011
27.01.2020 •
Chemistry
Ahydrogen atom in an excited state emits a photon of frequency ν = 3.084 x 1015 s-1. if the electron returns to the ground state, in which level was it before the photon was emitted?
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Ответ:
The photon was emitted from the 4th energy level
Explanation:
To calculate the wavelength of light, we use the equation:
where,
c = speed of light =![3\times 10^8m/s](/tpl/images/0473/9194/39d82.png)
Putting the values in above equation, we get:
To calculate the initial level, we use the equation given by Rydberg's equation, which is:
where,
Putting the values, in above equation, we get
Hence, the photon was emitted from the 4th energy level
Ответ: