Which of the four quantum numbers `(n, l, m_l, m_n)` determine the orientation of an orbital in space?

Explain the quantum number l.

The set of quantum numbers, n = 3, l = 2, m_(l) = 0

Write notation of orbital with n = 6 and l = 3.

Describe the orbital with quantum number n=5 and l=3

Explain the quantum number n, l and m. Also give the physical significance of each.

Describe the orbital with the quantum number : n = 1 l = 0

An orbital is occupied by an electrons with the quantum numbers n = 4, l = 1. How many orbitals of this type are found in a multi- electron atom ?

If n and l are respectively the principal and azimuthal quantum numbers , then the expression for calculating the total number of electrons in any energy level is :

An electron is in 4f orbital. What possible values for quantum number n, l and m _(l) can it have,

the acute angle between two lines such that the direction cosines l, m, n of each of them satisfy the equations l + m + n = 0 and l^2 + m^2 - n^2 = 0 is