Question: Using Figure 7-34, determine the ground-state electron configurations of tin (Sn, Z = 50), neodymium (Nd, Z = 60), and ytterbium (Yb, Z = 70).

Using Figure 7-34, determine the ground-state electron configurations of tin (Sn, Z = 50), neodymium (Nd, Z = 60), and ytterbium (Yb, Z = 70). Check your answers with Appendix C. Are there any disagreements? If so, which one(s)?

Figure 7-34

Energy 2p 2s 1s- 3p 35 10 45 3d 4p 20 30

Energy 2p 2s 1s- 3p 35 10 45 3d 4p 20 30 4d 5s 40 5p N Af 6s 50 60 5d 70 6p 80 n = 6 n = 5 n n=3 n=2 n=1 90

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