Part 3(e): Atomic Physics Bohr Model of the Atom Proposition 1: Nuclear Model is Correct The nuclear model is the only way to.

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Transcript Part 3(e): Atomic Physics Bohr Model of the Atom Proposition 1: Nuclear Model is Correct The nuclear model is the only way to.

Part 3(e): Atomic Physics

Bohr Model of the Atom

Proposition 1: Nuclear Model is Correct The nuclear model is the only way to expain the gold foil experiments.

Part 3(e): Atomic Physics

Bohr Model of the Atom

Proposition 2: Atoms Exist The are

special

electron orbits in the atom which violate the known laws of physics and

do not cause the emission of e-m waves

(photons).

Part 3(e): Atomic Physics

Bohr Model of the Atom

Although a given electron has KE and PE and is jiggling, if it is in a special orbit (characterized by a precise amount of KE and PE), it does not give up its energy in the form of a photon.

Part 3(e): Atomic Physics

Bohr Model of the Atom

Proposition 3: Atom emits a photon only when the electron "jumps" from a higher energy orbit to a lower energy orbit.

Since the special orbits are characterized by a specific amount of total energy, only specific amounts of energy will be available to produce a photon.

Part 3(e): Atomic Physics

Bohr Model of the Atom

Quantum Mechanics The electrons energy in the atom is not continuous, but that energy is realized in “bits.” The atom is said to be

quantized

. The area which studies these bits of energy is called

quantum mechanics