Electron Configurations

avatar
Created by
Tee Ok

Cards (12)

  • Electron Configurations = distributing e- among atomic orbitals
  • Ground state configuration = LOWEST energy
  • In Hydrogen or 1 e- systems (Bohr) - ALL orbitals in a shell have the SAME energy = n ONLY
  • s,p,d,f subshells:
    • SAME energy in a 1 ELECTRON atom = energy based on ELECTRON interactions with the NUCLEUS and OTHER ELECTRONS
  • Pauli Exclusion Principle = no more than 2 ELECTRONS per ORBITAL
  • Aufbau principle = fill lowest ENERGY orbital first; s<p<d<f
  • Hund's Rule
    = FILL up all available ORBITALS first BEFORE pairing electrons
    = Most stable arrangement for e- = degenerate, # of e- are MAXIMIZED
  • Core electrons = Noble Gases representing inner electrons
  • Valance electrons = outermost electrons with the HIGHEST n
  • Same # of valance electrons = same chemical properties
  • Paramagnetic = elements with different #s of +1/2 and -1/2 electrons
    • One type of spin over the other
    • attracted to a magnet
  • Diamagnetic = species with the same #s of +1/2 and -1/2 electrons
    • NOT attracted to a magnet