Question

Which one of the series of hydrogen spectrum is in the visible region?

Answer 1

Hydrogen spectrum:

• The hydrogen emission spectrum comprises radiation of discrete frequencies. This is due to the electron-making transitions between two energy levels in an atom.
• The energy transfer can be from the first shell to any shell.
• These series of radiation are named after the scientists who discovered them.

Lyman series:

• The transition of an electron from the first shell to any other shell is the Lyman series.
• This lies in the ultraviolet region.

Balmer series:

• The transition from the second shell to any other shell is the Balmer series.
• This occurs in the visible region.

Paschen series:

• The transition from the third shell to any other shell is the Paschen series.
• This lies in the infrared region.

Brackett series:

• The transition from the fourth shell to any other shell is the Brackett series.
• This lies in the far-infrared region.

Pfund series:

• The transition from the fifth shell to any other shell is the Pfund series.
• This lies in the infrared region.

Humphreys series:

• The transition from the sixth shell to any other shell is the Humphrey series.
• This lies in the infrared region.

Therefore, the visible region in the Hydrogen spectrum lies in the Balmer series.