Bohr Model of the Hydrogen Atom Postulates Certain orbits are stationary. Photon emission occurs...

Bohr Model of the Hydrogen Atom

Postulates• Certain orbits are stationary.• Photon emission occurs upon orbital trans.• Angular momentum is quantized.

Matter Waves

Louis de Broglie (1892 – 1987)

l = h/p

Constructive Interference Destructive Interference(Standing Wave) Hydrogen Atom

Towards a Wave EquationClassical Wave Propagation

Hamiltonian Mechanics

William Hamilton(1805 – 1865)

H = T + V

Now What?

Erwin Schrodinger (1887 – 1961)

The wave function contains all possibleinformation about a system, so instead of speaking of “the state described by thewave function Y,” we simply say “thestate Y.”

Quantum Chemistry by Ira N. Levine

What is the Wave Function?

Max Born (1882 – 1970)

Quantum mechanics does not say that an electron isdistributed over a large region of space as a wave isdistributed. Rather, it is the probability patterns(wave functions) used to describe the electron’smotion that behave like waves and satisfy a waveequation.

Quantum Chemistry by Ira N. Levine