Energy level after photon absorbtion

  • Thread starter Johnahh
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  • #1
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Main Question or Discussion Point

Say a photon was absorbed by an electron at 1s in an oxygen atom but it only had enough energy to move it to another energy level that was already occupied such a 2s etc. What happens to this photon?
 

Answers and Replies

  • #2
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The photon does not get absorbed if there is no available unoccupied energy level for the electron.
 
  • #3
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so how does the electron know that the photon does not have enough energy to move it to a free orbital?
 
  • #4
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Quantum mechanics. If a process is impossible, it just does not happen.
 

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