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Line Spectra

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Electrons in the gas will 'jump' to a higher energy orbit by absorbing specific ... visible window, when light emerging from the gas is examined with a spectroscope, ... – PowerPoint PPT presentation

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Title: Line Spectra


1
Line Spectra Absorption Spectrum
2
Line Spectra Absorption Spectrum
Produced when a continuous spectrum of light is
incident upon a gas. Electrons in the gas will
jump to a higher energy orbit by absorbing
specific energy (or specific wavelength) photons
from the incident beam. In the visible window,
when light emerging from the gas is examined with
a spectroscope, the continuous spectrum, minus
the wavelengths absorbed by the atoms, will be
observed.
3
Line Spectra Absorption Spectrum
E1
E2
E3
4
Line Spectra Hydrogen Absorption Spectrum
Ladder (Energy Level) Diagram
Energy
-13.6 /42
-13.6 /32
-13.6 /22
Etc.
Lya
Ly?
Lyß
-13.6 /12
5
Line Spectra Hydrogen Absorption Spectrum
Ladder (Energy Level) Diagram
Energy
-13.6 /42
-13.6 /32
Ha
H?
Hß
Etc.
-13.6 /22
-13.6 /12
6
Line Spectra Hydrogen Absorption Spectrum
7
Periodic Table with Spectra
http//jersey.uoregon.edu/elements/Elements.html
8
Line Spectra Absorption Spectrum of the Sun
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