Baron's AP Chemistry 2013

Important Concepts Atomic Theory Models of the Atom Structure of the Atom Protons, Neutrons, Electrons Isotopes Atomic Spectra Wave Mechanical Atom Energy Levels Electronic Signature Electron Configurations Valence Electrons Hund's Rule Heisenberg's Uncertainty Principle Orbital Diagrams Pauli Exclusion Principle Quantum Numbers 

Wave Mechanical Atom Model Louis de Broglie suggested that electrons could behave as a wave AND a particle Energy of light as a wave The Equation above and Einstien's famous E=mc^2, are equal. 

Important Variables

Quantum Numbers Necessary for determining the motion of an electron as a WAVE using complex "Wave Equations". principle quantum number = n                  the azimuthal quantum number = ℓ              and the magnetic quantum number = m A fourth Quantum Number may be needed to specify an electron completely and uniquely, the Spin Quantum Number = s 

Heisenberg Uncertainty Principle ((Delta)x)((Delta)mv)=h/4(pi) The concept of this equations states that it is impossible to know the momentum and position of an electron at the same time only one can be known per moment.

Pauli Exclusion PrincipleNo two electrons in an atom have the same 4 quantum numbers.Important for filling electron orbitals properly

Terms