Binding Energy Atomic Number K Shell L Shell Element Z (Kev) (Kev) H 0.014 C 6 0.28 0.07 O 0.53 0.024 P 15 2.15 0.19 16 2.47 0.23 Fe 26 7.11 0.85 Zn 30 9.66 1.19 Br 35 13.47 1.78 Ag 47 25.51 3.81 I 53 33.17 5.19 Tm 69 59.40 10.12 W 74 69.52 12.10 Pb 82 88.00 15.865. If a 20-keV x-ray is absorbed by an atom of P, I, or Pb, what are the possible energies of the electrons emitted in each case? Use Table 1.2 for binding energy information.