The energy of atomic orbitals in a given shell follows the order:

What is the maximum number of electrons accommodated in a subshell having azimuthal quantum number,$\ell=2$?

The number of $d-$ electrons in $Fe^{2+}$ (at. no. of $Fe = 26$) is not equal to that of the

If the number of radial nodes in an $s$-orbital is $(n - 1)$,and the question asks for the orbital where the number of nodes is $(n - 1)$,which orbital corresponds to the given expression $(n - 1)$?

When the azimuthal quantum number has a value of $l = 1$,the shape of the orbital is

Write about the subsidiary quantum number $(l)$.