Atomic Theory Timeline
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Aristotle
Democritus
Antoine Lavoisier
John Dalton
Sir JJ Thompson
Robert Millikan
Sir Earnest Rutherford
Neils Bohr
Sir James Chadwick
Erwin Schrodinger
Wolfgang Pauli
Friedrich Hund
The Aufbau Principle
Albert Einstein
Otto Hahn, Lise Meitner, and Fritz Strassman
The Aufbau Principle
1920s
Developed from Pauli, Hund, and Bohr
The Principle
Used to determine the electron configuration of an atom, molecule, or ion.
Can be used to predict configuration of protons and neutrons in nucleus.
Postulates atoms are built up by progressively adding electrons.