Übergang eines Elektrons aus einem angeregten Zustand in einen energetisch tiefer liegenden Zustand
English translation: transition of an electron from an excited state to an energetically lower-lying state
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| 19:56 Jan 27, 2008 |
| German to English translations [PRO] Science - Physics | |||||
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|  Selected response from: Zareh Darakjian Ph.D. United States Local time: 00:55 | ||||
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| 5 +6 | The transition of an electron from an excited state |
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| 4 +1 | transition of an electron from an excited state to an energetically lower state |
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Answers
2 mins confidence: 
peer agreement (net): +6
peer agreement (net): +6| Übergang eines Elektrons aus einem angeregten Zuststand The transition of an electron from an excited state Explanation: de-excitation process -------------------------------------------------- Note added at 3 mins (2008-01-27 20:00:53 GMT) -------------------------------------------------- The emission of light is a consequence of the transition of an electron from an excited state to energetically an lower-lying state. Chemical physics ... -------------------------------------------------- Note added at 4 mins (2008-01-27 20:01:48 GMT) -------------------------------------------------- sorry: to an energetically lower lying state.. Chemical physics - theoretical chemistry - my specialty -------------------------------------------------- Note added at 7 mins (2008-01-27 20:04:48 GMT) -------------------------------------------------- The electron is the one which has been excited to a higher energy state in the first place through some means (typically UV radiation) When it comes back to the "ground state" it emits the radiation it had absorbed in the form of light. This is not the only way of emitting energy. There are other ways (internal conversion = moving from a triplet state to a singlet state and then fluorescing (coming to the ground state). -------------------------------------------------- Note added at 10 mins (2008-01-27 20:07:35 GMT) -------------------------------------------------- When an inner shell electron (non-valence) electron is excited, the emission is of higher energy and is typically and X-ray radiation (non-visible, of course because it's high frequency and high energy). -------------------------------------------------- Note added at 23 mins (2008-01-27 20:20:49 GMT) -------------------------------------------------- Well, Jonathan: The mentioned "lower state" could be one of the less excited states or the lowest possible state = ground state. For instance, if we excite to level 6 (starting from the ground state = 1) then the electron might jump down to 5,4,3,2 levels (I am ignoring any quantum selection rules here, just to provide an explanation) or it could jump all the way down to where it was n = 1, ground state. Is this OK? -------------------------------------------------- Note added at 25 mins (2008-01-27 20:22:27 GMT) -------------------------------------------------- So here, in your case, the mentioned lower state could also be or is (I forgot what ggf stands for) the lowest state = the ground state. -------------------------------------------------- Note added at 26 mins (2008-01-27 20:23:52 GMT) -------------------------------------------------- Welcome! |
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