Suppose a scientist directed a single photon toward an isolated hydrogen atom. T

Question

Suppose a scientist directed a single photon toward an isolated hydrogen atom.  The photon was absorbed and an electronic transition took place (ni=1, nf=3).  Later, the scientist checked the detector and noted that signal from two emitted photons had been recorded.  

Which statement best describes this scenario?

(Suggestion: Drawing a representation of the Bohr model can help your analysis).

Both of the emitted photons will have identical energy, each 1/2 the energy of the initial photon.

The total energy of the emitted photons is greater the energy of the absorbed photon.

One of the emitted photons will be in the ultraviolet region of the electromagnetic spectrum.

The experiment is flawed.  There can be 1 or 3 photons emitted, but not 2.

Both of the emitted photons will have identical energy, each 1/2 the energy of the initial photon.

The total energy of the emitted photons is greater the energy of the absorbed photon.

One of the emitted photons will be in the ultraviolet region of the electromagnetic spectrum.

The experiment is flawed.  There can be 1 or 3 photons emitted, but not 2.

Explanation / Answer

One of the emitted photons will be in the ultraviolet region of the electromagnetic spectrum

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