How many orbitals are there in a d subshell?

Answer and explanation

Correct answer: C. 5

  1. Step 1: In quantum mechanical atomic theory, the number of degenerate spatial orbitals within a subshell of azimuthal quantum number is given by .
  2. Step 2: For a d subshell, the azimuthal quantum number is .
  3. Step 3: Evaluating the formula yields orbitals, with magnetic quantum numbers .
Answer
5.
Why not the others: 1 is the number of orbitals in an s subshell (); 3 is the number of orbitals in a p subshell (); 7 is the number of orbitals in an f subshell ().

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