The answer is n = 1, l = 0, m subscript l = 1
The 4 quantum numbers of the electronic configuration
n: main quantum number. It defines the layer.
n = 1 at layer K
n = 2 at layer L
n = 3 at layer M
And so on…
The energy of the electron is a function of n.
l: secondary or azimuth quantum number
it is an integer that varies from 0 to n-1. It defines the sub-layers s, p, d, f
l = 0 under layer s
l = 1 under layer p
l = 2 under layer d
l = 3 under layer f
It defines the shape and symmetry of the orbitals (orbital s, p, d etc ...)
Example n = 2 to l = 0 or l = 1 from which 2 sublayers 1s and 2p
m: magnetic quantum number
It takes values between -l and l (including the values of -l and l). At a value of m, correspond to 2l + 1 value of m. It determines the orbital orientation in space (see the shape of the orbitals.
s: quantum number of spin
The quantum number of spin is defined as the kinetic moment (or angular momentum) of the electron. s = -1 / 2 or ½ (2 directions of rotation of the electron on itself)
