What does the angular momentum quantum number determine?

What does the magnetic quantum number determine?

What does the principal quantum number determine?

The angular momentum quantum number, or spin quantum number, tells us the spin on an electron. It has a value of either + 1/2 or - 1/2, depending on spin direction.

The magnetic quantum number tells us the number of orbitals available within a subshell. Its value is 0, 1, 2, 3

The principal quantum number tells us the shell number and has integer values starting from 1.