- Acids and Bases (22)
- Atomic Structure (39)
- Aufbau Principle (1)
- Bohr Model
- Electromagnetic Radiation (29)
- Periodic Trends (4)
- Quantum Numbers & Orbitals (27)
- The Wave Function
- Biochemistry (51)
- Bonding (16)
- Chemical Bonds (7)
- Lewis Structures (2)
- VSEPR Theory (7)
- Chemical Elements (193)
- Chemical Equilibrium (13)
- Chemical Kinetics (6)
- Chemical Reactions (35)
- Coordination Chemistry
- Electrochemistry (19)
- Experimental Chemistry (1)
- Gases (5)
- Dalton's Law
- Effusion and Diffusion
- Gas Laws (3)
- Gas Stoichiometry (1)
- Kinetic Theory
- Real gas
- General Chemistry (213)
- Nomenclature (2)
- History of Chemistry (17)
- Inorganic Chemistry (8)
- Nuclear Chemistry (6)
- Organic Chemistry (63)
- Alcohols (1)
- Aldehydes and Ketones (1)
- Aliphatics (8)
- Amines
- Aromatics (1)
- Carboxylic Acids & Esters (2)
- Organic Reactions (7)
- Polymers (5)
- Physical Chemistry (3)
- Quantum Chemistry (2)
- Solid-state chemistry (34)
- Solutions (14)
- Spectroscopy (1)
- States of Matter (9)
- Stoichiometry (6)
- Theoretical Chemistry (1)
- Thermochemistry (55)
- Gibbs Free Energy (1)
Topics: Atomic Structure - Aufbau Principle
Aufbau Principle
The Aufbau principle is used to determine the electron configuration of an atom, molecule or ion. The principle postulates a hypothetical process in which an atom is "built up" by progressively adding electrons. As they are added, they assume their most stable conditions (electron orbitals) with respect to the nucleus and those electrons already there.