Last modified on 21 June 2009, at 04:48

FHSST Physics/Atom/Electron Configuration

The Free High School Science Texts: A Textbook for High School Students Studying Physics
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The Atom
Models - Structure - Isotopes - Energy Quantization - Periodicity of Ionization Energy - Successive Ionization Energies - Bohr Orbits - Heisenberg Uncertainty Principle - Pauli Exclusion Principle - Ionization Energy - Electron Configuration - Valency

Electron configurationEdit

i.e. filling the orbitals starting from 1s..... Aufbau principle unpaired and paired electrons Hund's rule: 1 e- in each orbital before pairing in p orbitals shorthand:  1s^2\ 2s^2\ 2p^2 etc.