The Bohr Model Worksheet

 

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  1. What is the Bohr model based on?
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  3. What is the equation?
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  5. What is the only applicable case to use the Bohr model?
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  7. An electron is excited from ground state to n=3 state in a hydrogen atom.   Which of the following statements are true?  Correct any false statements.
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    2. It takes more energy to ionize (remove) the electron from n=3 than from ground state.
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    4. The electron is farther from the nucleus on average in the n=3 state than in ground state.
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    6. The wavelength of light emitted if the electron drops from n=3 to n=2 is shorter that the wavelength of light emitted if the electron falls from n=3 to n=1
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    8. The wavelength of light emitted when the electron returns to the ground state from n=3 is the same as the wavelength of light absorbed from n=1 to n=3.

     

     

  8. ­­­­­­­­­­­­­­­­­Does a photon of visible light (λ=400-700nm) have sufficient energy to excite an electron in a hydrogen atom from the n=1 to the n=5 energy state?
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  10. An excited hydrogen atom emits light with a wavelength of 397.2 nm to reach the energy level for which n=2.  In which principal quantum level did the electron begin?
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  12. Consider an electron for a hydrogen atom in an excited state.  The maximum wavelength of electromagnetic radiation that can ionize the electron from the H atom is 1460 nm.  Determine the initial excited state for the electron.