Investigation of the Lyman series
•
The asymptotic value of light quantum energy for the Lyman series is En
light = (13.6)/(n^2eV)
•
En light = delta infinity light [1 (1/n^2)]
Investigation of the blamer series
•
Balmer Series (delta EBalmer, infinity – delta Enlight) = 13.6 (n^2)
•
N = (n+2) where n >2
Bohr’s Interpretation of the spectral series
•
Series
Energy Asymptotic Limit (eV)
•
Lyman
13.6
•
Balmer
3.4
•
Paschen
1.511
•
Brackett
0.850
•
Pfund
0.544
Spectral Analysis of Charged hydrogenlike Atoms
•
nth atomic energy level for He+ is En,He+ = (13.6 x 2^2)/ (n^2)eV or (
54.4 eV)/ (n^2)
•
the nth atomic energy level for Li2+ is En, Li2+ = [9(13.6)]/ (n^2) eV
where [9(13.6)] = 122.4
•
The relationship between the energy levels of H and Li can be expressed as
the same basic relationship except that the energy of lithium is about 9 times
greater than that of hydrogen.
•
The formula for energy levels of Be3+ ion is [16 (13.6)]/(n^2) eV or
(
217.6)/(n^2) eV
Generalization for this particular lab:
En, atom= [13.6(z^2)]/(n^2) where z is equal to the atomic number with only one
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document
This is the end of the preview.
Sign up
to
access the rest of the document.
 Fall '07
 GOLGER
 Atom, nth atomic energy, atomic energy level, Delta En

Click to edit the document details