2. The sodium D-line is the only visible line in the emission spectrum of sodium. It is shown compared to the Balmer lines of hydrogen atoms. But it is actually a pair of yellow lines very close together in the line spectrum of sodium due to the transition from the excited configuration Na* 1s 2s 2p 3p down to 1Na = 1s 2s 2p" 3s'. Because there is only one electron outside of the noble-gas core, the total quantum numbers L and S are the same as the individual quantum numbers l and s, respectively. That's nice, isn't it? It should make things simpler, but it may also be confusing. (a) What is the value of L and S for the excited configuration? (b) Write the term symbols for the levels of the excited state configuration. (c) How many states are in each level of the excited state configuration? (d) Sort the levels of the excited state configuration by their energy. 三路三= 0021 ev 4p 3p Wavelength 414 Bel 3s tps/atadeyahvisatoronto.caeartatyntro/oectra/specteatem hetp/yperphysiespy astredu/hhafquantum/um ent
2. The sodium D-line is the only visible line in the emission spectrum of sodium. It is shown compared to the Balmer lines of hydrogen atoms. But it is actually a pair of yellow lines very close together in the line spectrum of sodium due to the transition from the excited configuration Na* 1s 2s 2p 3p down to 1Na = 1s 2s 2p" 3s'. Because there is only one electron outside of the noble-gas core, the total quantum numbers L and S are the same as the individual quantum numbers l and s, respectively. That's nice, isn't it? It should make things simpler, but it may also be confusing. (a) What is the value of L and S for the excited configuration? (b) Write the term symbols for the levels of the excited state configuration. (c) How many states are in each level of the excited state configuration? (d) Sort the levels of the excited state configuration by their energy. 三路三= 0021 ev 4p 3p Wavelength 414 Bel 3s tps/atadeyahvisatoronto.caeartatyntro/oectra/specteatem hetp/yperphysiespy astredu/hhafquantum/um ent
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Transcribed Image Text:2. The sodium D-line is the only visible line in the emission spectrum of sodium. It is shown compared
to the Balmer lines of hydrogen atoms. But it is actually a pair of yellow lines very close together in
the line spectrum of sodium due to the transition from the excited configuration Na* = 1s 25' 2p 3p
down to 1Na = 1s' 2s 2p 3s'. Because there is only one electron outside of the noble-gas core, the
total quantum numbers Land S are the same as the individual quantum numbers l and s, respectively.
That's nice, isn't it? It should make things simpler, but it may also be confusing.
(a) What is the value of L and S for the excited configuration?
(b) Write the term symbols for the levels of the excited state configuration.
(c) How many states are in each level of the excited state configuration?
(d) Sort the levels of the excited state configuration by their energy.
都三割三部
-5p
4d
1- 6e
0021 ev
3p
-4p
3p
Wavelength
5.14
-Bal as
https:/lataday phyicsatoronto.c/Weartatyintros/soectra/spectra.tem
hetp/yperphysics ply astraedu/hhaafpuantum/odium.em
Energy e
Se
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