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Question 7.9: How many distinctly different states (and therefore wave fun...

How many distinctly different states (and therefore wave functions) exist for the 4d level of atomic hydrogen?

Strategy As shown in Example 7.4, the degeneracy of each level is n^{2}, before spin is taken into account. In the absence of an applied magnetic field, the fourth quantum number for intrinsic spin makes the degeneracy of the nth quantum level 2 n^{2}. The number of states has increased significantly.

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