The splitting of spectral lines by a magnetic field is called the zeeman effect after the Dutch physicist Pieter Zeeman. The Zeeman effect is a vivid confirmation of of space quantization. Magnetic quantum number 'm' was introduced during the study of zeeman effect. 'm' can have the (2l+1) values (-l,0,+l). Magnetic quantum number represents the orientation of atomic orbitals in three-dimensional space. the normal zeeman effect consists of the splitting of a spectral line of frequency `v_(0)` into three components i.e.,
`v_(1)=v_(0)-(e)/(4pim)B,v_(2)=v_(0),V_(3)=v_(0)+(e)/(4pim)B`
Here, B is magnetic field.
Q. Which among the following is/are correct about the orientation of atomic orbitals in space?

Options

A. s-orbitals has single orientation
B. d-subshell orbitals have three orientations along x,y and z directions
C. f-subshell have seven orientations in their orbitals
D. None of the above

Answer

A, C