In other words, every subshell has an orbital that has a certain shape. And the shape of the orbitals in any subshell represents the most probable location of our electrons. So shapes are based on mathematical probabilities where our electrons are located. So let's look at the shape of our S. S has a spherical shape. And what that basically means what this shape means is that there's a 90% chance that our electron will be found within this sphere. In other words, if we know that our N is equal to zero, or actually M equals one, m can't be zero.