Chemistry and Chemical Reactivity (9th Edition)

There are $2\ell+1$ orbitals per subshell and $\ell$ nodal planes. $\begin{smallmatrix} Orbital&&N.\ orbitals& N.\ nodal\\ type&\ell&=\ 2\ell+1&surfaces\ =\ \ell\\ \hline\\ s&0&1&0\\ p&1&3&1\\ d&2&5&2\\ f&3&7&3\\ \end{smallmatrix}$