In the n=1 shell you only find s orbitals, in the n=2 shell, you have s and p orbitals, in the n=3 shell, you have s, p and d orbitals and in the n=4 up shells you find all four types of orbitals.
Explanation:
There are n2 orbitals for each energy level. For n = 1, there is 12 or one orbital.
The location of the electrons in the Thomson's plum pudding model of the atom are contained in orbitals. These orbitals are what make the element stable or unstable
