CHM 132 Chapter Notes - Chapter 12, 13, 14: Ionic Bonding, Valence Electron, Pauli Exclusion Principle
10 Aug 2017
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12. 13 the aufbau principle and the periodic table. Aufbau principle as protons are added one by one to the nucleus to build up the elements, electrons are similarly added to these atomic orbitals. Pauli exclusion principle when two electrons share an orbital, they have to have opposite spin. Hu(cid:374)d"s rule the lowest-energy configuration for an atom is the one having the max (cid:374)u(cid:373)(cid:271)er of u(cid:374)paired ele(cid:272)tro(cid:374)s allo(cid:449)ed (cid:271)(cid:455) pauli"s e(cid:454)(cid:272)lusio(cid:374) pri(cid:374)(cid:272)iple i(cid:374) a parti(cid:272)ular set of degenerate orbitals. Valence electrons the electron in the outermost principal quantum level of an atom, determine reactivity. 12. 14 further development of the poly-electronic model. Self-consistent field method estimate (cid:2870),(cid:2871),(cid:2872), ,(cid:3038) and use that to find (cid:2869). Then go through that until you have found all of them. When you have a reasonable thing for all of them, use these estimates to make the values even more accurate. Continue to repeat the cycle until the results are nearly the same as the previous results.
