Chemistry homework help!?

Savannah Hatake

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(a) Calculate the frequency (v) of the light emitted from atomic hydrogen when an electron changes from the n=3 energy level to the n=1 energy level.

(b) Calculate the wavelength of this light in nanometers.

(c) if an electron were to change from the n=4 to the n=1 energy levels ( instead of from the n=3 to the n=1 energy levels) how would the values of "energy change", "frequency", and "wavelength" change?
 
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