HW2_atoms-1 - Solutions for HW 2 Q4 Describe the main...

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Unformatted text preview: Solutions for HW 2 Q4 Describe the main features of Rutherford’s planetary model of atoms and the experimental facts that it accounts for. In this experiment, the test particles usually did not deflect at all. This means that throughout most of the atom, there is nothing. But sometimes the particles got deflected through very large angles. This meant that the atom must have a concentration of charge somewhere. It couldn’t be distributed uniformly throughout the atom. Q5 What experimental facts cannot be explained with Rutherford’s planetary model? What does this model predict about the emission of light? Since the electrons are moving in circular orbits, they are accelerating, and should radiate continuously. There shouldn’t be a discrete set of lines in the spectrum, but a broad set of wavelengths throughout the energy region. Q6 Using Bohr’s postulates and the physical relationships that are assumed to be present, determine the radius of the hydrogen atom when the electron is in the ground state.determine the radius of the hydrogen atom when the electron is in the ground state....
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This note was uploaded on 10/25/2009 for the course PHYSICS Astronomy taught by Professor Me during the Spring '09 term at Akademia Ekonomiczna w Krakowie.

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HW2_atoms-1 - Solutions for HW 2 Q4 Describe the main...

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