S Salam I New member Sep 21, 2009 #1 If it takes 4.70 * 10^-19 J of energy to eject an electron from the surface of a certain metal, calculate the longest possible wavelength, in nanometers, of light that can ionize the metal
If it takes 4.70 * 10^-19 J of energy to eject an electron from the surface of a certain metal, calculate the longest possible wavelength, in nanometers, of light that can ionize the metal