2 items with this tag.
C41-4 In the central-field approximation, No two electrons in an atom can occupy the same state $(n,l,m_l,m_s)$ This accounts for the atomic group diversity and chemical reaction observed in the periodic table and the associated electronic configuration, and ionization.
C41-4 A method of approximating specific complications where we assume that in an atom that the potential energy is given by $U(r)$ with: Each electrons forms a spherically-symmetric cloud of net charge quantum states and Pauli exclusion principle Canonical Hub: CANONICAL_INDEX.