Lyman Series
Moderators: Chem_Mod, Chem_Admin
-
- Posts: 103
- Joined: Wed Sep 30, 2020 9:33 pm
Lyman Series
If the Lyman Series is ever mentioned in a problem should we just assume E(final) is 1?
-
- Posts: 116
- Joined: Wed Sep 30, 2020 10:00 pm
Re: Lyman Series
Yes, the ground state for the Lyman series is always 1, so your n1 or nfinal is equal to 1.
-
- Posts: 170
- Joined: Wed Sep 30, 2020 9:50 pm
Re: Lyman Series
Yeah, we should assume that the final energy state in the Lyman series is n=1. This is because the jump from n=1 to other energy levels requires a lot of energy, specifically from light in the UV region (which is where the Lyman series is found). Since the Balmer series is visible light and thus can't really provide enough energy to bring the electron up from n=1, we should make this assumption about the Lyman series.
-
- Posts: 124
- Joined: Wed Sep 30, 2020 9:35 pm
- Been upvoted: 6 times
Re: Lyman Series
Yes like the other peers mentioned we should assume that the final energy state or your n1 in the Rydberg Eqn. Lyman series is n=1. This is because when you working with in the Lyman series, you are talking about the UV region. This area is higher energy than other series, for example n=2 which is the Balmer series and visible light region.
-
- Posts: 136
- Joined: Wed Sep 30, 2020 9:46 pm
Re: Lyman Series
From what some of the TAs said, just assume n=1 is somewhere in the equation. I think whether its nfinal or ninitial depends on whether its an emission or absorbtion. If emission, since it is going back to the lower state, n=1 would be the final. If absorbtion, because the electron is being excited up to an energy level, n=1 would be the initial. Hope this helps!
-
- Posts: 107
- Joined: Wed Sep 30, 2020 9:57 pm
- Been upvoted: 2 times
Re: Lyman Series
Hi! If it is Lyman series, n=1 should be in the equation. However, don't assume it only has to be the final state. If the e- is absorbing energy than n=1 is probably the initial state. Similarly, if e- is emitting energy than n=1 is probably the final state. Hope this helps!
-
- Posts: 107
- Joined: Wed Sep 30, 2020 9:57 pm
- Been upvoted: 2 times
Re: Lyman Series
Hi! If it is Lyman series, n=1 should be in the equation. However, don't assume it only has to be the final state. If the e- is absorbing energy than n=1 is probably the initial state. Similarly, if e- is emitting energy than n=1 is probably the final state. Hope this helps!
-
- Posts: 73
- Joined: Wed Sep 30, 2020 9:35 pm
-
- Posts: 50
- Joined: Wed Sep 30, 2020 9:37 pm
-
- Posts: 97
- Joined: Wed Sep 30, 2020 9:37 pm
-
- Posts: 51
- Joined: Wed Sep 30, 2020 9:47 pm
Re: Lyman Series
Yes! Remember that anything in the UV region involves n=1, anything in the visible region involves n=2, and anything in the infrared region involves n=3.
-
- Posts: 110
- Joined: Wed Sep 30, 2020 9:45 pm
Re: Lyman Series
This is how I remembered it: The Lyman series corresponds to UV light and the electrons rest at the energy level n=1. While the Balmer series corresponds to visible light and the electron's rest at the energy level n=2.
-
- Posts: 104
- Joined: Wed Sep 30, 2020 9:31 pm
Re: Lyman Series
You would only assume this if the it was an emission spectrum problem. If it was an absorption problem, you would assume that n=1 is the initial.
-
- Posts: 109
- Joined: Wed Sep 30, 2020 9:58 pm
Re: Lyman Series
I would say you cannot necessarily assume that E(final) = 1, because depending on the question they may be asking based on the absorption or emission spectrum, but definitely one of the energy levels is n=1!
-
- Posts: 111
- Joined: Wed Sep 30, 2020 9:35 pm
Re: Lyman Series
yes it should end in n=1! Lyman corresponds to UV light so it has a higher energy level
-
- Posts: 112
- Joined: Wed Sep 30, 2020 10:03 pm
- Been upvoted: 3 times
Re: Lyman Series
Yes, the Lyman series always ends in n=1 (ground state), while the Balmer series always ends in n=2.
Hope this helps!
Andre Fabian
Hope this helps!
Andre Fabian
-
- Posts: 106
- Joined: Wed Sep 30, 2020 9:48 pm
Re: Lyman Series
Yes, the Lyman series involves an an electron moving down to the n=1 energy level or up from the n=1 level. However, you cannot assume that the value is for n(final), as the problem could be describing emission or absorption.
-
- Posts: 102
- Joined: Wed Sep 30, 2020 9:52 pm
Re: Lyman Series
The Lyman series is the UV so n1=1 while the baller series is in visible light so n1=2.
-
- Posts: 97
- Joined: Wed Sep 30, 2020 9:47 pm
-
- Posts: 96
- Joined: Wed Sep 30, 2020 9:36 pm
-
- Posts: 53
- Joined: Wed Sep 30, 2020 9:55 pm
Re: Lyman Series
If you click on the hints or solutions(if you already did it) sections of sapling it should tell you about it.
-
- Posts: 101
- Joined: Wed Sep 30, 2020 9:34 pm
Re: Lyman Series
Adding on to other answers, the Balmer series would be n=2 and the Paschen series would be n=3. Hope this helps!
-
- Posts: 100
- Joined: Wed Sep 30, 2020 9:54 pm
Re: Lyman Series
If the problem mentions the Lyman Series, there should be an n=1 somewhere in the equation. The Lyman series is in the ultraviolet while the Balmer series is in the visible and the Paschen, Brackett, Pfund, and Humphreys series are in the infrared.
Hope this helped!
Hope this helped!
-
- Posts: 108
- Joined: Wed Sep 30, 2020 9:40 pm
-
- Posts: 136
- Joined: Wed Sep 30, 2020 9:51 pm
Re: Lyman Series
Yes, lyman series has much more energy. As the gap from n2 to n1 is the largest gap of energy, lyman will always end up at n1 since it has the most energy.
-
- Posts: 55
- Joined: Wed Sep 30, 2020 9:44 pm
-
- Posts: 111
- Joined: Wed Sep 30, 2020 10:01 pm
-
- Posts: 104
- Joined: Wed Sep 30, 2020 10:03 pm
-
- Posts: 101
- Joined: Wed Sep 30, 2020 9:34 pm
- Been upvoted: 1 time
Return to “Photoelectric Effect”
Who is online
Users browsing this forum: No registered users and 5 guests