`L = sqrt(l(l+1)) (h)/(2pi)`
On the other hand, m determines Z-component of orbital angular momentum as `L_(z) = m ((h)/(2pi))`
Hund's rule states that in degenerate orbitals electron s do not pair up unless and until each such orbital has got an electron with parallel spins. Besides orbital motion, an electron also possess spin-motion. spin may be clockwise and anti-clockwise. Both thes spin motions are called two spin states of electron characterised by spin. `s = +(1)/(2)` and `s =- (1)/(2)`, respectively.
The orbital angular momentum of electron `(l =1)` makes an angle of `45^(@)` from Z-axis. The `L_(z)` of electron will be

Options

A. `2((h)/(2pi))`
B. `0((h)/(2pi))`
C. `(h)/(2pi)`
D. `3((h)/(2pi))`

Answer

C