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The third line of the Balmer series, in ...

The third line of the Balmer series, in the emission spectrum of the hydrogen atom, is due to the transition from the

A

fourth Bohr orbit to the first Bohr orbit

B

fifth Bohr orbit to the second Bohr orbit

C

sixth Bohr orbit to the third Bohr orbit

D

seventh Bohr orbit to the third Bohr orbit

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To determine the transition responsible for the third line of the Balmer series in the emission spectrum of the hydrogen atom, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Balmer Series**: The Balmer series corresponds to the transitions of electrons in a hydrogen atom from higher energy levels (n > 2) to the second energy level (n = 2). 2. **Identify the Lines in the Balmer Series**: The lines in the Balmer series are numbered based on the transitions from higher energy levels to n = 2. The first line corresponds to the transition from n = 3 to n = 2, the second line from n = 4 to n = 2, and so on. 3. **Determine the Third Line**: The third line of the Balmer series corresponds to the transition from n = 5 to n = 2. 4. **Conclusion**: Therefore, the third line of the Balmer series is due to the transition from n = 5 to n = 2. ### Final Answer: The third line of the Balmer series in the emission spectrum of the hydrogen atom is due to the transition from n = 5 to n = 2. ---
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