Question on 1A 11


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Jamie Lee 1H
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Joined: Fri Aug 09, 2019 12:15 am

Question on 1A 11

Postby Jamie Lee 1H » Sat Oct 12, 2019 10:01 pm

In the spectrum of atomic hydrogen, several lines are generally classified together as belonging to a series. What iscommon to the lines within a series that makes grouping themtogether logical?

805422680
Posts: 87
Joined: Sat Sep 14, 2019 12:16 am

Re: Question on 1A 11

Postby 805422680 » Sat Oct 12, 2019 10:05 pm

The Balmer and Lyman series are series defined by the final position of the electron, after a photon is emitted. The Lyman series involve jumps to or from the ground state (n=1); the Balmer series (in which all the lines are in the visible region) corresponds to n=2.

ishaa Diwakar 4E
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Joined: Wed Sep 11, 2019 12:17 am

Re: Question on 1A 11

Postby ishaa Diwakar 4E » Sat Oct 12, 2019 10:06 pm

The grouping is also most likely determined by the wavelengths of the emitted photons, which are grouped based on UV light (Lyman) and visible light (Balmer).

Althea Zhao 1B
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Joined: Mon Jun 17, 2019 7:24 am

Re: Question on 1A 11

Postby Althea Zhao 1B » Sun Oct 13, 2019 4:30 am

Lines within a series share a principal quantum number, n.

Gabriella Bates 2L
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Joined: Thu Jul 11, 2019 12:15 am

Re: Question on 1A 11

Postby Gabriella Bates 2L » Sun Oct 13, 2019 9:34 am

The grouping has to do with both the wavelength of the emitted photon and the quantum level. The lyman involves jumps to or from the n=1 energy level. Therefore, the change in energy will be greater, causing the emitted photon to have a larger frequency and therefore a smaller wavelength. Thus, the lyman series emits photons in the UV spectrum. In contrast, the balmer series involves jumps to or from the n=2 energy level. Therefore, the change in energy will be slightly smaller, causing the emitted photon to have a smaller frequency and therefore a longer wavelength. Thus, the balmer series emits photons in the visible spectrum.


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