Which one of the following series of line is found in the UV region of atomic spectrum of hydrogen

Options

A. Balmer
B. Paschen
C. Bracket
D. Lyman

Answer

To determine which series of lines is found in the ultraviolet (UV) region of the atomic spectrum of hydrogen, we can follow these steps:

### Step 1: Understand the Series of Lines in Hydrogen's Atomic Spectrum
Hydrogen's atomic spectrum consists of several series of spectral lines, each corresponding to transitions of electrons between energy levels. The main series are:
- Lyman series
- Balmer series
- Paschen series
- Brackett series
- Pfund series

### Step 2: Identify the Wavelength Ranges for Each Series
Each series is associated with a specific range of wavelengths:
- **Lyman series**: Transitions to the n=1 energy level (UV region)
- **Balmer series**: Transitions to the n=2 energy level (Visible region)
- **Paschen series**: Transitions to the n=3 energy level (Infrared region)
- **Brackett series**: Transitions to the n=4 energy level (Infrared region)
- **Pfund series**: Transitions to the n=5 energy level (Infrared region)

### Step 3: Determine Which Series Falls in the UV Region
From the information above, we can see that:
- The **Lyman series** is the only series that falls within the ultraviolet region of the electromagnetic spectrum.

### Step 4: Conclusion
Based on the analysis, the series of lines found in the UV region of the atomic spectrum of hydrogen is the **Lyman series**.

### Final Answer
The Lyman series is found in the UV region of the atomic spectrum of hydrogen.

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