What is the "transition corresponding to the third line in the Lyman series of the hydrogen emission spectr?

I have to calculate the wavelength (in nm) of a photon emitted during a transition corresponding to the third line in the Lyman series (nf = 1) of the hydrogen emission spectrum.

I know how to solve problems like this, but I just need 1 more piece of information to solve this one.

What is ni ? I just need to know what energy level this begins at.

Whenever an electron drop from a higher energy level to the lowest energy level ( n = 1), a spectral line will form in the Lymann series.

The first line corresponds to the transition from n = 2 to n = 1.
The second line corresponds to the transition from n=3 to n=1.
The third line corresponds to the transition from n=4 to n=1
……. and so on.

You can expand it to include the Balmer series .
For Balmer series, the electron must drop to n=2.
So, the first line in Balmer series is the transition from n=3 to n=2,
………..and so on

One Response to “What is the "transition corresponding to the third line in the Lyman series of the hydrogen emission spectr?”

  1. Whenever an electron drop from a higher energy level to the lowest energy level ( n = 1), a spectral line will form in the Lymann series.

    The first line corresponds to the transition from n = 2 to n = 1.
    The second line corresponds to the transition from n=3 to n=1.
    The third line corresponds to the transition from n=4 to n=1
    ……. and so on.

    You can expand it to include the Balmer series .
    For Balmer series, the electron must drop to n=2.
    So, the first line in Balmer series is the transition from n=3 to n=2,
    ………..and so on
    References :

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