A. Principal quantum number (n)
B. Azimuthal quantum number (l)
C. Magnetic quantum number (m_l)
D. Spin quantum number (m_s)
Answer: Azimuthal quantum number (l)
Which quantum number indicates the shape of an orbital?
Additional Information: The azimuthal quantum number (l) indicates the shape of an orbital.
Subjects: Atomic Structure, Chemistry