Question

Which quantum number signifies the sub-shells in an atom? How many orbitals are
present in M-shell ?​

Answer 1

Answer:

The second quantum number, known as the angular or orbital quantum number, describes the subshell and gives the magnitude of the orbital angular momentum through the relation. In chemistry and spectroscopy, ℓ = 0 is called an s orbital, ℓ = 1 a p orbital, ℓ = 2 a d orbital, and ℓ = 3 an f orbital

There are 4 subshells in M-shell, s, p, d, and f

Answer 2

9 orbitals are pesent in M shell

azimuthal quantum number