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#Post#: 1291--------------------------------------------------
Daily question-8
DIR By: Shiva
Date: November 29, 2012, 12:43 pm
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The transition of electron from n3 = 4,5,6.. to n1=1 corresponds
to
(i) Pfund
(ii) Brackett
(iii) Paschen
(iv) Lyman series of hydrogen spectrum
#Post#: 1292--------------------------------------------------
Re: Daily question-8
DIR By: Shiva
Date: November 29, 2012, 1:02 pm
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Pick the correct answer and earn Karmas :-)
#Post#: 1308--------------------------------------------------
Re: Daily question-8
DIR By: Chemist@
Date: November 30, 2012, 8:08 am
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Lyman.
#Post#: 1309--------------------------------------------------
Re: Daily question-8
DIR By: Shiva
Date: November 30, 2012, 8:26 am
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Thanks for the answer :-) I'll tell the correct answer in a
couple of hours from now. Could you plz answer Question-7 too?
None answered it yet.
Shiva
#Post#: 1313--------------------------------------------------
Re: Daily question-8
DIR By: Shiva
Date: November 30, 2012, 12:31 pm
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Answer: (iii) Paschen
#Post#: 1316--------------------------------------------------
Re: Daily question-8
DIR By: Chemist@
Date: November 30, 2012, 1:24 pm
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I am not sure about this. I found on wikkipedia
HTML http://en.wikipedia.org/wiki/Hydrogen_spectral_series#Paschen_series_.28Bohr_series.29_.28n.E2.80.B2_.3D_3.29<br
/>that Lyman' series is for every electron transition to n=1.
Paschen series is from 4,5,6,7,8,∞ to n=3.
#Post#: 1318--------------------------------------------------
Re: Daily question-8
DIR By: Michel
Date: November 30, 2012, 1:47 pm
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No idea:(
after learning these stuff to pass exams in high school, they
simply wasted off my brain...
Although wiki is not written by professors, it is rarely wrong.
Could we get some clarification, Shiva?
I'll do some searches myself
#Post#: 1319--------------------------------------------------
Re: Daily question-8
DIR By: Chemist@
Date: November 30, 2012, 1:50 pm
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Chemguide is written by a professor and it says the same
HTML http://www.chemguide.co.uk/atoms/properties/hspectrum.html#top<br
/>(it is the graph before "The significance of the numbers in
the
Rydberg equation" title).
#Post#: 1320--------------------------------------------------
Re: Daily question-8
DIR By: Michel
Date: November 30, 2012, 2:01 pm
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We have to agree with the professor:)
confirming from Gen Chem by Ebbing&Gammon; says the same as well
#Post#: 1321--------------------------------------------------
Re: Daily question-8
DIR By: Shiva
Date: November 30, 2012, 2:04 pm
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Yep, it is moving from Paschen to Lyman. In other words,
Infra-red to Ultraviolet. When electrons return from the excited
state to ground, to find out where exactly it lies, we have to
do some calculations by using Rydberg's constant to determine
the wavelength.
Shiva
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