Physical Chemistry

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26.Use Russell-Saunders LS coupling to derive the ground state levels of (a) Ne
(b) F (c) Sc (d) Zr (e) C.

30.
a. Construct a Grotrian diagram for the He emission spectrum (shown on
the right) and use it to assign as much of this spectrum as you can
using the data in the table below.
b. What is the energy difference between the 3
S (1s1
2s1
) and 1
S (1s1
2s1
)
levels? Why are these levels not the same energy, and why is the 3
S
(1s1
2s1
) level lower than the 1
S (1s1
2s1
) level, and not vice versa?
c. What is the energy difference between the 3
PJ (1s1
2p1
) and 1
P (1s1
2p1
)
levels? Compare your answer to your answer for part (c) and explain
any differences.

  • Physical Chemistry -

    We can't draw diagrams/structures on this forum and most of the answers to your questions can't be done easily on this site. If you can rephrase or reconstruct them perhaps we can help.

  • Physical Chemistry -

    What are the Russell-Saunders LS coupling derivations of the ground state levels of (a) Ne (b) F (c) Sc (d) Zr (e) C.

    Configuration Level DE (cm-1)
    1s2 1S 0.0
    1s1 2s1 3S 159855.97
    1S 166277.44
    1s1 2p1 3P2 169086.76
    3P1 169086.84
    3P0 169087.83
    1s1 2p1 1P 171134.89
    1s1 3s1 3S 183236.79
    1S 184864.82
    1s1 3p1 3P2 185564.56
    3P1 185564.58
    3P0 185564.85
    1s1 3d1 3D3 186101.54
    3D2 186101.54
    3D1 186101.59
    1s1 3d1 1D 186104.96
    1s1 3p1 1P 186209.36
    1s1 4p1 1P 191492.71

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