Question

The orbital quantum number 1 determines the (a) direction of the electron's orbital angular momentum, (b) z-component of the electron's angular momentum, (c) magnitude of the electron's spin, (d) magnitude of the electron's orbital angular momentum.

Answer 1

Magnitude of electron's orbital angular momentum is

$\frac{h}{2 \pi }\sqrt{l(l+1)}$

So, l determines magnitude of orbital angular momentum, Option 4

a, b )direction is determined by right hand rule.

C) spin is constant, either 1/2 or -1/2

Do not depend on l