ELECTRON CONFIGURATION

    Cards (10)

    • electron configuration is the distribution of electrons of an atom or molecule in atomic or molecular orbitals
    • electron configuration describes atoms as each moving independently in an orbital
    • the four sublevels in electron configuration are s, p, d, and f
    • maximum number of orbitals:
      s = 1
      p = 3
      d = 5
      f = 7
    • maximum no. of electrons:
      s = 2
      p = 6
      d = 10
      f = 14
    • orbital describes the specific distribution of electrons
    • pauli exclusion principle - only two electrons with opposite spins can occupy an orbital; no two electrons can have the same quantum number
    • aufbau principle - electrons orbiting atoms fill the lowest energy levels before filling the higher ones
    • hund's rule - electrons fill all orbitals before pairing with an opposite-spinning electron
    • valence electron - electrons in the outermost shell of an atom
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