We're asked to determine the possible quantum numbers when n = 1, let’s first define the possible values of the first three quantum numbers:
• principal quantum number (n) → energy level in orbitals and its value could be any positive integer starting from 1
• angular momentum quantum number (ℓ) → (l) has to be at least 1 less than n, range of values from 0 up to (n-1)
• magnetic quantum number (mℓ) → range of values from -ℓ to + ℓ.
List all the orbitals in each principal level. Specify the three quantum numbers for each orbital.
n = 1