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Name the series of hydrogen atom which l...

Name the series of hydrogen atom which lies in U.V. region.

A

lyman

B

balmer

C

paschen

D

none of these

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The correct Answer is:
To answer the question, "Name the series of hydrogen atom which lies in the U.V. region," we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Hydrogen Spectrum**: The hydrogen atom emits light at specific wavelengths when its electrons transition between energy levels. These transitions result in different series of spectral lines. 2. **Identify the Series**: The main series associated with the hydrogen atom are: - Lyman series - Balmer series - Paschen series - Brackett series - Pfund series - Humphrey series 3. **Determine the Regions of Each Series**: - **Lyman Series**: Transitions from n ≥ 2 to n = 1, lies in the ultraviolet (UV) region. - **Balmer Series**: Transitions from n ≥ 3 to n = 2, lies in the visible region. - **Paschen Series**: Transitions from n ≥ 4 to n = 3, lies in the infrared region. - **Brackett Series**: Transitions from n ≥ 5 to n = 4, lies in the infrared region. - **Pfund Series**: Transitions from n ≥ 6 to n = 5, lies in the far infrared region. - **Humphrey Series**: Transitions from n ≥ 7 to n = 6, lies in the far infrared region. 4. **Conclusion**: Based on the information above, the only series that lies in the ultraviolet region is the **Lyman series**. ### Final Answer: The series of hydrogen atom which lies in the U.V. region is the **Lyman series**. ---
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