Analyse SL atomic-transition questions by mapping electron energy levels to absorption or emission lines and counting the possible photon frequencies.
This question is about energy level transitions.
Some of the electron energy levels for a hydrogen atom are shown.
A hydrogen atom is excited to the -1.51 eV level.
On the diagram, label using arrows all the possible transitions that might occur as the hydrogen atom returns to the ground state.
Monochromatic radiation is incident on gaseous hydrogen. All the hydrogen atoms are in the ground state. Describe what could happen to the radiation and to the hydrogen atoms if the incident photon energy is equal to
10.2 eV .
9.0 eV .