【Daily Question】Theoretical Foundation 2020.06.15
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Multiple-choice question: The quantum numbers that determine the orientation and shape of atomic orbitals are ( ). A. Principal quantum number, angular momentum quantum number； B. Angular quantum number, magnetic quantum number ； C. Magnetic quantum number, angular quantum number ； D. Spin quantum number, angular momentum quantum number. Answer: C. Hint: Extra rewards will be given to those who can explain the solution process; the answer can be seen in the response
The principal quantum number n determines the energy level of the electron (its distance from the nucleus)； The magnetic quantum number determines the spatial orientation of atomic orbitals ； The spin quantum number ms determines the spin direction of the electron. Only the angular quantum number determines the shape of an atomic orbital; for example, an s orbital (ℓ=0) is spherical, a p orbital (ℓ=1) is spindle-shaped, and a d orbital (ℓ=2) is plum blossom-shaped, etc.