Question:
The series of spectral lines obtained in the ultraviolet region of hydrogen atomic spectrum constitute
The series of spectral lines obtained in the ultraviolet region of hydrogen atomic spectrum constitute
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Remember the order: Lyman, Balmer, Paschen (L-B-P).
The regions follow the energy decrease: UV, Visible, Infrared (U-V-I).
The regions follow the energy decrease: UV, Visible, Infrared (U-V-I).
Updated On: Apr 29, 2026
- Balmer series
- Lyman series
- Paschen series
- Brackett series
- Pfund series
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept:
In the hydrogen atom, when an electron jumps from a higher energy orbit to a lower energy orbit, it emits radiation of a specific wavelength.
These emissions are categorized into different series based on the lower energy level (\(n_1\)).
Step 3: Detailed Explanation:
The classification of the hydrogen spectrum series is as follows:
1. Lyman Series: Electronic transitions from \(n_2 = 2, 3, 4, ...\) to \(n_1 = 1\). This series lies in the Ultraviolet (UV) region.
2. Balmer Series: Transitions to \(n_1 = 2\). This series lies in the Visible region.
3. Paschen Series: Transitions to \(n_1 = 3\). This series lies in the Infrared region.
4. Brackett Series: Transitions to \(n_1 = 4\). This series lies in the Infrared region.
5. Pfund Series: Transitions to \(n_1 = 5\). This series lies in the Far Infrared region.
Step 4: Final Answer:
Since the question asks for the series in the ultraviolet region, the correct answer is the Lyman series.
In the hydrogen atom, when an electron jumps from a higher energy orbit to a lower energy orbit, it emits radiation of a specific wavelength.
These emissions are categorized into different series based on the lower energy level (\(n_1\)).
Step 3: Detailed Explanation:
The classification of the hydrogen spectrum series is as follows:
1. Lyman Series: Electronic transitions from \(n_2 = 2, 3, 4, ...\) to \(n_1 = 1\). This series lies in the Ultraviolet (UV) region.
2. Balmer Series: Transitions to \(n_1 = 2\). This series lies in the Visible region.
3. Paschen Series: Transitions to \(n_1 = 3\). This series lies in the Infrared region.
4. Brackett Series: Transitions to \(n_1 = 4\). This series lies in the Infrared region.
5. Pfund Series: Transitions to \(n_1 = 5\). This series lies in the Far Infrared region.
Step 4: Final Answer:
Since the question asks for the series in the ultraviolet region, the correct answer is the Lyman series.
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