Lesson: Electron Energy Levels

Which energy level is the electron initially in?

Which energy level does the electron transition to?

The diagram shows a hydrogen atom. An electron, initially in the third energy level of the atom, transitions to the first energy level, emitting a particle at the same time. What kind of particle is emitted in this process?

The diagram shows an electrically neutral atom. If one of the electrons in the innermost shell were to absorb a photon and move into an excited state, which of the electron shells shown in the diagram could it move to?