How many orbitals are in the l = 4 subshell?

To determine the number of orbitals in a given subshell, you need to use the formula:

Number of orbitals = (2l + 1)

In this case, you are looking for the number of orbitals in the l = 4 subshell. Applying the formula:

Number of orbitals = (2 * 4 + 1) = 9

So, there are 9 orbitals in the l = 4 subshell.