Each electron present in one of the atom's orbitals is a bit, so yeah. More realistically, the simplest atom- one proton, one electron- has 3 integer numbers a

Each electron present in one of the atom's orbitals is a bit, so yeah. More realistically, the simplest atom- one proton, one electron- has 3 integer numbers associated with the state of the electron. You need more than a bit to describe the state of that system, so yeah.