I am (attempting to) learn the *basics* of quantum physics in terms of the origin of atomic orbitals from the Schrodinger equation. I understand that the solution for H is split into a product of 2 functions, the radial wave function and the angular wave function. Then I am being shown plots of the radial wave function for various orbitals. And what seems to be missing, (or perhaps something obvious that I am missing), is what it actually is representing. I am also aware of the radial distribution function which makes a little more sense to me (probability of an electron being at a distance r from the nucleus). But I can't seem to see what the radial wave function represents. Any help would be appreciated!