13. Which of the following sets of quantum numbers is not allowed? The values are listed in the order (n, l, ml, ms). (A) 4, 1, 1, +1/2 (B) 4, 0, 0, -1/2 (C) 3, 1, 0, +1/2 (D) 5, 3, 1, -1/2 (E) 3, 3, 0, -1/2

18. Most valence electron transitions occur in the _ region of the electromagnetic spectrum. Rotational transitions are typically induced by radiation in the region, and vibrational transitions are typically induced by radiation in the _ region. (A) X-ray, UV-vis, IR (B) UV-vis, IR, microwave (C) IR, microwave, UV-vis (D) Microwave, X-ray, UV-vis (E) UV-vis, microwave, IR

13. Which of the following sets of quantum numbers is not allowed? The values are listed in the order (n, l, ml, ms).
(A) 4, 1, 1, +1/2
(B) 4, 0, 0, -1/2
(C) 3, 1, 0, +1/2
(D) 5, 3, 1, -1/2
(E) 3, 3, 0, -1/2

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