Question

Which of the following are possible values for the spin Lz of a proton or electron? Select all that are true.

Do you know the allowed values of spin? Which of the following are possible values for the spin Lz of a proton or electron? Select all that are true. hbar NOTE: hbar is being used to mean h 1/2 hbar 1/2 hbar hbar

Answer 1

The z-component of orbital angular momentum is given by: $L_z = m_l \hbar$

where $m_l \epsilon {.....,-2,-1,0,1,2,......}$ is called magnetic quantum number.

Obviously from given options the possible values are $0, +\hbar, -\hbar$