Download Development of Quantum Mechanics Waves

AP Chemistry
By
Diane Paskowski
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If light is a wave with particle properties, are
electrons particles with wave properties?
C. J. Davisson and L. H. Germier at Bell labs
proved that electrons produce diffraction
patterns and verified deBroglies hypothesis

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Bohr’s model did not
work for atoms other
than hydrogen
Werner Heisenberg
and Erwin
Schrodinger
developed quantum
mechanics
independently.

Schrodinger
◦ Emphasized wave properties of the electrons
◦ Wave function
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Orbital is not an orbit

Electron NOT moving around the nucleus

DO NOT KNOW how it is moving

Heisenberg Uncertainty Principle
◦ There is a fundamental limitation to just how
precisely we can know both the position and
momentum of a particle at a given time.
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Wave function has no easily visualized
physical meaning
Square of the function indicates the
probability of finding an electron near a
particular point in space
Probabilty distribution defines the orbital