Can One Electron Make Two Transitions in a Row?

AI Thread Summary
The discussion revolves around the emission of three photons with energies of 12.1 eV, 10.2 eV, and 1.9 eV from an excited atomic hydrogen sample. The question is whether these photons originate from one atom, two atoms, or three atoms. The reasoning provided suggests that a single electron could transition from the M level to release these energies, but there is confusion regarding the number of atoms involved. Ultimately, the conclusion is that since each hydrogen atom contains only one electron, the correct answer is that the photons must come from three separate atoms. The inquiry highlights the complexities of electron transitions in atomic physics.
Sumanth
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Homework Statement



Three photons coming from excited atomic hydrogen sample are picked up. Their energies are 12.1 eV, 10.2 eV and 1.9 eV. These photons must come from?
A)two or three atoms
B)single atom
C)three atoms
D)two atoms

The Attempt at a Solution


By solving it i got single atom but it is not the answer...
 
Last edited:
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Please show your working and reasoning.
 
Simon Bridge said:
Please show your working and reasoning.

In a hydrogen atom energy of k level is -13.6eV
L level is -3.4eV
M level is -1.5eV
Now if electrons dexcite from M level then there is possibility for the three values of the energy of photons released... That's the reason I got only single atom
 
Sumanth said:
Now if electrons dexcite from M level
How many electrons are there in each atom?
 
One. Electron in each atom ... So. I think answer will be three ... I didnt think of the number of electrons but i thought of only possibilities
 
Is it possible for one electron to make two of the transitions in a row?
 
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