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For principal quantum number n=4:
1) azimuthal quantum number (l) can be l = 0...n-1:
l = 0, 1, 2, 3. 
The azimuthal quantum number determines its orbital angular momentum and describes the shape of the orbital. 
2) magnetic quantum number (ml) can be ml = -l...+l.
ml = -3, -2, -1, 0, +1, +2, +3.
Magnetic quantum number specify orientation of electrons in magnetic field and number of electron states (orbitals) in subshells.
3) the spin quantum number (ms), is the spin of the electron.
ms = +1/2, -1/2.

The possible values for n=4 of l is 0, 1, 2 and 3, m is -3, -2, -1, 0, 1, 2, 3 and s is +1/2 and -1/2.

What are quantum numbers?

Quantum numbers of any atom will tells idea about the position and number of shells, subshells, orbitals and electrons of that atom.

In the question, given that value of n i.e. shell is 4.

  • Azimuthal quantum number (l) and its value will be calculate as:

l = 0 to n-1, where n is the principal quantum

For n=4 value of l is shown as 0, 1, 2 and 3.

  • Magnetic quantum number (m) and its value will be calculate as:

m = -l to +l

For l = 0, m = 0

l = 1, m = -1, 0, +1

l = 2, m = -2, -1, 0, 1, 2

l = 3, m = -3, -2, -1, 0, 1, 2, 3

  • Spin quantum number (s) and its value will be calculated as:

s = +1/2 and -1/2

Hence, all possible values of l, m and n are explained below.

To know more about quantum number, visit the below link:

https://brainly.com/question/5927165

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