Wed. Oct. 8, 2003
Today’s Lecture
•
Quantum Mechanics and Atomic
Theory
•
12.4 The Bohr model
•
12.5 The quantum mechanical
description
•
12.6 Particle in a box (review on your
own)
•
12.7 The Wave Equation
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•
The Bohr Model:
– Niels Bohr (18851962):
first quantum model
•
proposed: electron in a
hydrogen atom moves
around the nucleus only in
certain allowed circular
orbits
•
this was not completely
explained by classical
physics
• it assumes that the e

’s
have restricted values of
angular momentum
(quantized)
(i.e., mass x velocity x orbital radius)
Fig 12.10