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Hydrogen atoms absorb energy so that the electrons are excited to n=4. Calcu...
Mathematics, 05.05.2020 13:05 sksksjs
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Hydrogen atoms absorb energy so that the electrons are excited to n=4. Calculate the wavelength, in
nm, of the photon emitted when the electron relaxes to n=2.
O 487nm
456nm
4.56x 10-7nm
4.87 x 10-7nm
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