Answer:
For 4f the principal quantum number, n is 4 and the angular momentum quantum number l is 3
7s: n = 7 and l = 0
4p: n = 4 and l = 1
7p: n = 7 and l = 1
Explanation:
The principal quantum number gives the energy level of the electron in an atom. It shows the shells in which an electron is in an atom.
if n = 1, 2, 3, 4...; it corresponds to K, L, M, N... shells in an atom
The numerical coefficient of the subshell gives the pricipal quantum number.
for instance in 4f, the principal quantum number, n is 4 because 4 is the coefficient.
The angular momentum quantum number, l gives the energy sublevel or subshell.
Angular momentum quantum number has integral values, l = 0, 1, 2, 3... which correspond to s, p, d, f,.. orbitals.
Thus for 4f the principal quantum number, n is 4 and the angular momentum quantum number l is 3
similarly, for 7s: n = 7 and l = 0
4p: n = 4 and l = 1
7p: n = 7 and l = 0
using similar approach for others
