1. The problem statement, all variables and given/known data The X-ray spectrum for a typical metal is shown in Figure 31-22. Find the approximate wavelength of Kbeta X-rays emitted by titanium. (Hint: An electron in the M shell is shielded from the nucleus by the single electron in the K shell, plus all the electrons in the L shell.) (The figure seems irrelevant to me, no useful data is privded by it, it's just a graph with no labels.) 2. Relevant equations 3. The attempt at a solution I don't really know what to do here, there's several things I don't understand. I believe that K-beta X-rays are emitted when the electron drops from the 3rd excited state to the ground level. But how do you determine the energy level difference here? And when Titanium is in an "excited" state, does that mean that just one electron moved up 3 levels, or more than one? Any help in explaining this would be greatly appreciated.