All the major quantum's must have for each N3- Lewis structure ? The one-dimensional particle in a box model from the previous section shows us how a wavefunction works in one dimension (the x- dimension). In one dimension, the wavefunction requires only one quantum number, n n . A full explanation of the three-dimensional wavefunction for an electron is outside of the scope of this course. Instead, we will focus on gaining a conceptual understanding by extending knowledge of the one-dimensional wavefunction to a three-dimensional space. Quantum numbers Extending the wavefunction to three dimensions requires a total of three quantum numbers. In addition to n n , which we saw in the one-dimensional case, we also need l l and ml m l to express the wavefunction in three dimensions. A complete solution to the Schrdinger equation, both the three-dimensional wavefunction and energy, includes a set of three quantum numbers ( n,l,ml n , l , m l ). The wavefunction describes what we know as an atomic orbital; it defines the region in space where the electron is located. Additionally, there is a fourth quantum number, ms m s . The ms m s quantum number accounts for the