1, 0, 1, 1/2 is a valid set of four quantum numbers.
The fundamental quantum number determines the size of the orbital (n). For instance, larger orbitals with n = 2 than those with n = 1 exist. Because of the antagonism between their electrical charges, electrons are pulled to the nucleus of the atom.
The orbital's form is described by the angular quantum number (l). The best descriptions for the forms of orbitals are spherical (l = 0), polar (l = 1), or cloverleaf (l = 2). As the angular quantum number increases, they can even assume more intricate forms.
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