24. The orientation in space of an atomic orbital is associated with (A)the principal quantum number (n). (B)the angular momentum quantum number (l). (C)the magnetic quantum number (ml). (D)the spin quantum number (ms). (E)the magnetic and spin quantum numbers together.

7. Consider the following octahedral complex structures, each involving ethylenediamine and two different monodentate ligands, X and Y. Which one of the following statements about these structures is incorrect? (A)Structures 1 and 2 are optical isomers. (B)Structures 1 and 3 are optical isomers. (C)Structures 1 and 3 are different complexes. (D)Structures 1 and 4 are geometrical isomers. (E)Structures 3 and 4 are the same complex.

24. The orientation in space of an atomic orbital is associated with
(A)the principal quantum number (n).
(B)the angular momentum quantum number (l).
(C)the magnetic quantum number (m_l).
(D)the spin quantum number (m_s).
(E)the magnetic and spin quantum numbers together.

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