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What are the quantum numbers n and l for Al (Z=13)?

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n = 

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l = 

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What are the quantum numbers n and l for Ga (Z=31) 

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n = 

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l = 

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An example of the splitting of spectral lines due to the spin-orbit effect that is often cited is the case of the so-called D lines of sodium. These lines have wavelengths of 588.995 and 589.592 nm.

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Determine the energy splitting ΔE of these lines, in meV.

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Select the correct schematic representations of the electron configurations.

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For oxygen:

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For sulphur:

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Determine the weak field Zeeman splitting pattern for spectral lines arising from the following

\n

transitions. How many allowed transitions exist, and how many spectral lines are formed?

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For the transition 1D2--> 1P1, the number of electron energy level transitions is [[0]] and the number of spectral lines is [[1]]

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For the transition 2P3/2--> 2S1/2, the number of electron energy level transitions is [[0]] and the number of spectral lines is [[1]]

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For the transition 3P1--> 3S1, the number of electron energy level transitions is [[0]] and the number of spectral lines is [[1]]

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A sunspot is observed on the surface of the Sun in hydrogen-alpha from a telescope on the Earth. The splitting of the line was 0.05 Angstroms due to the \"normal\" Zeeman effect.

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What was the magnitude of the magnetic field in the sunspot (in units of Tesla)? (H-α is n=3 to n=2)

\n

Hint: first work out the energy and wavelength of the transition before the magnetic field was applied. Then work out the change in energy due to the splitting. Next you need to draw out the allowed transitions, applying the transition rules. Then you can work out the magnetic field.

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