Question: 1. How much energy would it take to remove the electron from unexcited hydrogen completely so that it is no longer bound to its proton?

1. How much energy would it take to remove the electron from unexcited hydrogen completely so that it is no longer bound to its proton?

2. What wavelength of light would be needed to do that, remove the electron and "ionize" the atom by absorbing a photon? Show your calculation.

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