Atoms And Nuclei

Concept:
The hydrogen atom emits spectral lines when an electron transitions between different energy levels. These spectral lines are grouped into series depending on the final energy level of the electron.
• Lyman Series: Ultraviolet region ( )
• Balmer Series: Visible region ( )
• Paschen Series: Infrared region ( )
• Brackett Series: Infrared region ( ) The wavelength of spectral lines in hydrogen is given by the Rydberg formula.

Step 1: Identify the series corresponding to the visible region.
In the hydrogen spectrum, transitions ending at the energy level produce visible spectral lines.

Step 2: Recognize the name of this series.
The spectral series corresponding to transitions terminating at is called the Balmer Series.

Step 3: State the conclusion.
Therefore, the hydrogen spectral series that lies in the visible region is the Balmer Series.