The four lines observed in the visible emission spectrum of hydrogen tell us that A)The hydrogen molecules they came from have the formula H₄. B)We could observe more lines if we had a stronger prism. C)There are four electrons in an excited hydrogen atom. D)Only certain energies are allowed for the electron in a hydrogen atom.

Question

Quizplus · Accepted Answer

The four lines observed in the visible emission spectrum of hydrogen are due to the transitions of the electron from higher energy levels to lower energy levels. This indicates that only certain energies are allowed for the electron in a hydrogen atom, which is the result of the quantization of energy in atoms. Therefore, choice D is the correct answer. The other options are not supported by any evidence and are incorrect.

The Four Lines Observed in the Visible Emission Spectrum of Hydrogen