The following figure shows part of the energy diagram of a hydrogen atom in four different situations (labeled as A, B, C and D). All solid lines represent energy states (degeneracy is not considered here) and dashed lines highlight the reference levels. Read the figure and answer the following questions. E |Зр 2s A B C D (a) An emission is shown as an arrow in situation D. Write down the term symbols for the initial state and the final state. Determine if this transition is allowed or not. If not, what is/are the violation(s)?

Chemistry for Engineering Students
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Chapter6: The Periodic Table And Atomic Structure
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The following figure shows part of the energy diagram of a hydrogen atom in four
different situations (labeled as A, B, C and D). All solid lines represent energy states (degeneracy is
not considered here) and dashed lines highlight the reference levels. Read the figure and answer the
following questions.
E
3p
2s
A
B
C
D
(a) An emission is shown as an arrow in situation D. Write down the term symbols for the initial
state and the final state. Determine if this transition is allowed or not. If not, what is/are the
violation(s)?
Transcribed Image Text:The following figure shows part of the energy diagram of a hydrogen atom in four different situations (labeled as A, B, C and D). All solid lines represent energy states (degeneracy is not considered here) and dashed lines highlight the reference levels. Read the figure and answer the following questions. E 3p 2s A B C D (a) An emission is shown as an arrow in situation D. Write down the term symbols for the initial state and the final state. Determine if this transition is allowed or not. If not, what is/are the violation(s)?
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