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Topic: AES: Balmer & Co.  (Read 8008 times)

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Offline SpanishHorse

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AES: Balmer & Co.
« on: March 17, 2008, 01:00:45 PM »
Hi I´m new in chemistry.

Why are Balmer series (n->2), Paschen series (n->3), etc. not combined as (2->m), (3->m), etc.?                   

Thank you for any hint.

SH.

Offline agrobert

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Re: AES: Balmer & Co.
« Reply #1 on: March 17, 2008, 01:03:19 PM »
The names correspond to the discoverer.  The equations of course are similar but historical.
In the realm of scientific observation, luck is only granted to those who are prepared. -Louis Pasteur

Offline ARGOS++

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Re: AES: Balmer & Co.
« Reply #2 on: March 17, 2008, 03:12:59 PM »

Dear SpanishHorse; ─   Welcome to the Forums.

If I correctly interpret your Question, then you are asking, why in the particular Series all Emissions ‘ends’ on the identical Excitation Level, and why they are not combined the way, that all ‘starts’ from the same  Excitation Level?

So additionally to Agrobert’s answer we can simply say that it is because where all Lines of a Series appear in the Spectrum (conform to their Energy.)

Lymann in the UV; Balmer in Vis/Violet; Paschen in the NIR; Brackett in the IR; Pfund in the Far-IR.

Or with simpler words:  The Ending has a higher power of “regulatory”/"order".

You may also read (incl. H2-Spectrum-Link) on:    "Spectroscopy

I hope to have been of help of you.


Good Luck!
                    ARGOS++


Offline SpanishHorse

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Re: AES: Balmer & Co.
« Reply #3 on: March 19, 2008, 12:54:02 PM »
thank you ARGOS. It is now clear.

SH.

Offline SpanishHorse

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Re: AES: Balmer & Co.
« Reply #4 on: March 26, 2008, 12:54:28 PM »
We just started with "Beer's Law".

But if I search the Forum(s) for, why I get only 3 Hits?
Finally with Yahoo!/Google for: "Chemicalforums Beer's Law topic" I get more then two pages of different Hits!

Thank you for any hint.

SH.

Offline JGK

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Re: AES: Balmer & Co.
« Reply #5 on: March 26, 2008, 02:39:39 PM »
We just started with "Beer's Law".

But if I search the Forum(s) for, why I get only 3 Hits?
Finally with Yahoo!/Google for: "Chemicalforums Beer's Law topic" I get more then two pages of different Hits!

Thank you for any hint.

SH.

Refine your search, use Beer-Lambert Law and try again
Experience is something you don't get until just after you need it.

Offline SpanishHorse

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Re: AES: Balmer & Co.
« Reply #6 on: March 27, 2008, 05:15:09 PM »
Thank you JGK for your hint.
This few more Hits gives me not similes as Yahoo!/Google do for mine, but it's a good addition.
Unfortunately also for your search term Yahoo!/Google know at least 3 times more inside the forum.
(Yahoo! is all times more complete and also more relevant as Google!. Surprising?!)

Is the search funnction of the forum generally so 'bad, incompetent' or is it only in my case?

Thank you for any hint.

SH.

Offline agrobert

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Re: AES: Balmer & Co.
« Reply #7 on: March 27, 2008, 07:17:51 PM »
Not sure.  When I do your searches in CF I get more hits.
In the realm of scientific observation, luck is only granted to those who are prepared. -Louis Pasteur

Offline SpanishHorse

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Re: AES: Balmer & Co.
« Reply #8 on: March 28, 2008, 04:19:03 PM »
(Great! Finally I found how to load pictures.)

Thank you agrobert.
What you see is my unfsatifying situation.
But why is it different??!??!??   What is the systematic?

Thank you for any hint from you all.

SH.

Offline agrobert

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Re: AES: Balmer & Co.
« Reply #9 on: March 28, 2008, 06:11:51 PM »
Ok SH.

Now I see your problem.  You are searching with the SEARCH button (with magnifying glass in upper left).  Try the Google Search in the upper right and select Chemical Forums.  They shouldn't be different but they are.  Maybe the Google Search is updated more often.  Good luck.

-Andrew
In the realm of scientific observation, luck is only granted to those who are prepared. -Louis Pasteur

Offline SpanishHorse

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Re: AES: Balmer & Co.
« Reply #10 on: March 30, 2008, 04:10:27 PM »
Thank you again Andrew.

But in this case I will use my alternative method, because it gives mostly more and more adequate Hits, especially if I use Yahoo! instead of Google!
But the Question: For what is in this moment the "normal" search field?
Only to joke 'everybody'?

Should it be renamed: "Don't use me, because I'm very rarely updated!"
I think there must be something wrong, or how this correlates with the philosophy of the Forums?

SH.


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