The energy of an elector in teh nth level of a hydrogen, Ask an Expert

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The energy of an elector in teh Nth Level of a hydrogen atom is En=-13.6/n^2 eV where n=1,2,3...

A) Find the wavelength of the emitted photon when an electron makes a transition from the second level to the first level.

B) How much energy is required to ionize a hydrogen atom in its ground state?

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