41. These coefficients can be positive or negative, depending on the energies and symmetries of the individual atomic orbitals . 42. If we consider the extreme case of isolated atoms, the Wannier function would become an isolated atomic orbital . 43. This simple system demonstrates that hybridised atomic orbitals with higher p character will have a smaller angle between them. 44. This means that a maximum of two electrons can share the same atomic orbital without violating the exclusion principle. 45. This MO is called the bonding orbital and its energy is lower than that of the original atomic orbitals . 46. "d " atomic orbitals are quite important for the molecular orbitals for some bonds and molecules. 47. The actual distribution per shell is explained by quantum theory, see atomic orbital for all the gory details. 48. Such features again emphasize that the shapes of atomic orbitals are a direct consequence of the wave nature of electrons. 49. The atomic orbital model is nevertheless an approximation to the full quantum theory, which only recognizes many electron states. 50. The atomic orbital energy correlates with electronegativity as more electronegative atoms hold their electrons more tightly, lowering their energies.
