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The following atomic line spectra display six of the more prominent lines observed in the visible region for the indicated element. The number by each line represents its the relative intensity. A photograph of the actual spectrum of the element may show many more lines, or sometimes fewer lines, depending on the overall intensity of the spectrum. If two lines are within 1 nm of each other, they are shown as a single line. You can find a complete listing of the lines for each element at the
NIST Atomic Spectra Database
.
Some spectral lines of Strontium:
Identify the line in the spectrum of Sr with each of the following characteristics:
A
B
C
D
E
F
light with a photon energy of 293.4 kJ/mol.
A
B
C
D
E
F
light with a frequency of 5.470×10
14
s
-1
.
A
B
C
D
E
F
light with a photon energy of 4.712×10
-19
J/photon.
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Some spectral lines of Aluminum:
Identify the line in the spectrum of Al with each of the following characteristics:
A
B
C
D
E
F
light with a photon energy of 256.3 kJ/mol.
A
B
C
D
E
F
light with a frequency of 5.360×10
14
s
-1
.
A
B
C
D
E
F
light with a photon energy of 4.273×10
-19
J/photon.
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Some spectral lines of Neon:
Identify the line in the spectrum of Ne with each of the following characteristics:
A
B
C
D
E
F
light with a photon energy of 3.103×10
-19
J/photon.
A
B
C
D
E
F
light with a photon energy of 172.6 kJ/mol.
A
B
C
D
E
F
light with a frequency of 4.263×10
14
s
-1
.
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You must get the above parts correct to obtain access to a table of spectral data that you can use to identify the following spectra as well as the unknowns in your laboratory experiment:
Al
Ar
Cd
Cr
Cs
Cu
He
Hg
Kr
Li
Na
Ne
Sr
Xe
Zn
Identify the element giving the following visible spectrum:
Al
Ar
Cd
Cr
Cs
Cu
He
Hg
Kr
Li
Na
Ne
Sr
Xe
Zn
Identify the element giving the following visible spectrum:
Processing your submission ...
Tries 0/99
