CHEM 105aLg Chapter 8: Chapter VIII
Document Summary
Chapter viii: periodic properties of the elements: nerve signal transmission, the development of the periodic table, how e- occupy orbitals. For an atom shows the particular orbitals that e- occupy for that atom. The ground state is the lowest energy state for an atom. The pauli exclusion principle states that no 2 e- in an atom can have the same quantum #s. In the h atom the energy of an orbital depends on the principal quantum # (they all have the same energy degenerate) The repulsion of one e- by others is known as shielding that e- from the full effects of nuclear charge. Columb s law states that the potential energy (e) of 2 charged particles depends on their charges and separation. An e- experiences greater nuclear charge when it undergoes penetration into the region occupied by the inner. The inner e- in effect shield the outer e- from the full nuclear charge (effective nuclear charge (cid:2187)(cid:2188)(cid:2188)) electron.
