You are hitting a surface of a metal with photons that have a wavelength of 300...

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You are hitting a surface of a metal with photons that have a wavelength of 300...

You are hitting a surface of a metal with photons that have a wavelength of 300 nm. If the wavelength of the ejected electron is 1.2 nm what is the ionization energy of the metal in KJ/mole?

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Hare the wavelenght of ejected electron is smaller than the hitted photon.So the energy of the ejected electron is high than the hitted photon.It is impossible . That's why the the ionozation energy will be negative value.

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