Which statement about molecular orbitals is not true? Molecular orbitals result from the orbital contributions of all atoms within a molecule. Molecular orbitals, unlike atomic orbitals, do not involve radial probability densities because molecules are not spherical. Electrons within a molecule are best described as being in atomic, not molecular, orbitals. With molecular orbitals, we are concerned with the overall distribution (or densities) of electrons between the internuclear axes.