Writing Electron Configurations

The Chemistry of Art > 4. The Transition Metals > Writing Electron Configurations >

Process and present information from secondary sources by writing electron configurations of the first transition series in terms of sub-shells


  • 4s subshell filled first
  • Subsequent shells fill 3d in accorance with the Pauli Exclusion Principle and Hund’s rule
  • Exception occur with chromium and copper (As Outlinesd above)
    • As having all orbitals half filled or totally filled is more stable than one lacking an electron
    • A 4s electron moves into the vacant orbitals to allow this to occur