A photon of wavelength 320 nm is absorbed by a hydrogen atom when the electron is in the second excited state (i.e. n = 3). The electron is then ejected from the atom.

A.)What is the energy of this photon?

B.)How much energy is needed to ionize this hydrogen atom? That is, how much energy is needed to eject the electron?

C.)What is the kinetic energy of the ejected electron?

D.)What is the speed of the ejected electron?