Calculate the longest wavelength of electromagnetic radiation that could ionize an atom of each of the following elements: a) Li; IE_{1}=520.1 kJ/mol can some one tell me the steps to do this problem. thanks
[tex]E=hv[/tex] [tex]v=\frac{c}{\lambda}[/tex] so...[tex]\lambda=\frac{hc}{E}[/tex] E = energy (IN JOULES, not kJ!!) h = 6.626 * 10^-34 J*s v = frequency (s^-1) c = 3.00 * 10^8 m/s (speed of light) [tex]\lambda[/tex] = wavelength
thanks, the only thing that was confusing about this problem was the units. I used the exact equation but my units did not work out. I got an answer in m/atom then some one told me that the atom is ignored for some reason.