PracticeSheet4 key

PracticeSheet4 key - Practice Sheet 4 BLC DLC Answers A See...

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Practice Sheet 4 A. See BLB pp. 222-224. Key points you might include in your answers: The Bohr model assumed quantized electron energies but failed to explain why the energies are quantized. The Bohr model works only for single-electron atoms. A better model was needed for multi-electron atoms. The Bohr model does not account for the wave-particle duality of matter, which was becoming well understood due to the work of de Broglie. The Heisenberg uncertainty principle makes the idea of electron orbits used in the Bohr model impractical. In an orbit, you know both the location and speed of the electron, which Heisenberg showed is not possible. B. Line λ  (nm) ν  (Hz) Energy (J) 1 (left) 411 7.29E+14 4.83E-19 2 435 6.89E+14 4.57E-19 3 487 6.16E+14 4.08E-19 4 (right) 657 4.56E+14 3.02E-19 He (right) 668 4.49E+14 2.97E-19 Your numbers may be slightly different 4B.1 a) p orbital, three different orientations per energy level, two radial nodes in the
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This note was uploaded on 11/04/2011 for the course CHEM 105 taught by Professor Macedone during the Fall '07 term at BYU.

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PracticeSheet4 key - Practice Sheet 4 BLC DLC Answers A See...

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