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Unformatted text preview: he electron wavelengths are described by the
de Broglie relationship.
Nobel Prize,
Physics 1929
Only good
for H and Hlike atoms
Not good for
heavier
atoms • De Broglie’s assertion was verified by Davisson & Germer
within two years.
• Consequently, we now know that electrons (in fact  all
particles) have both a particle and a wave like character. 4 1/21/2014 Quantum Mechanical Model of Atom:
Wave Mechanics
• Erwin Schrödinger made a
profound discovery in 1927 by
showing that the discrete energy
states of matter could be
determined by Wave Equations Atomic Orbitals described by the Schrödinger Equation
• Schrödinger equation calculates the energy level of
an electron that corresponds to its specific
wavefunction. Schrödinger Equation Nobel Prize, Physics
1933
Hamiltonian Operator to the ψ function :D Quantum Mechanical Model of Atom:
Matrix Mechanics leads to Uncertainty
Principle
• The observer can never exactly know
both the position and momentum of
a particle. Werner Heisenberg,
Nobel Prize, Physics
1932 • As every observation requires an
energy exchange (photon) to c...
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This document was uploaded on 03/26/2014.
 Winter '14
 Atom, Electron, pH

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