Posted by **delany** on Tuesday, July 22, 2008 at 11:54pm.

Hi there, I need a little help starting this one.

Calculate the energy in joules needed to remove one electron in the n=1 state from a hydrogen atom.

I feel like i should apply the

wavelength = Nhc/deltaE but I have no idea how to apply this to hydrogen.

I appreciate your time!

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