Q. The orientation of an atomic orbital is governed by:
Answer: magnetic quantum number
Notes: Quantum numbers may be defined as a set of four numbers which give complete information about the electron in an atom, i.e., energy, orbital occupied, size, shape and orientation of that orbital and the direction of electron spin. Magnetic quantum number is required to explain the fact that when the source giving the line spectrum is placed in a magnetic field, each spectral line splits in to a number of lines. The magnetic quantum number tells the number of orientations which the orbitals present within the same sub-shell can take up.

This question is part of 40000+ General Studies MCQ Series Course on GKToday Android app. Question Number: 36 in Chemistry-7-Atomic Structure in above course in App.