Figure Q 38.12 shows the energy-level diagram of Element X.

Figure Q 38.12

a. What is the ionization energy of Element X?

b. An atom in the ground state absorbs a photon, then emits a photon with a wavelength of 1240 nm. What conclusion can you draw about the energy of the photon that was absorbed?

c. An atom in the ground state has a collision with an electron, then emits a photon with a wavelength of 1240 nm. What conclusion can you draw about the initial kinetic energy of Figure Q 38.5 the electron?

Figure Q 38.5

Transcribed Image Text:

E (eV) 0.0 - - -1.0 -n = 3 1240 nm -2.0 - n = 2 -4.0 n = 1