chemistry

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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!

  • chemistry -

    Energy required to move an electron from one energy level to another is
    delta E = E2-E1 = 2.180 x 10^-18/hc x (1/N1^2 - 1/N2^2) where N1 < N2.

    So plug in N = 1 for N1 and infinity for N2 (since you want to remove the electron completely). That will make the 1/N2^2 part zero. Can you take it from there.

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