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    Radiation Biological damage and Bohr model of atoms

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    1. An electron drops from the L shell to the K shell and gives off an X-ray with a wavelength of 0.0205 nm. What is the atomic number of this atom?
    Answer 78

    2. A radioactive substance has a decay constant equal to 8.9x10^-3s-1. What is the half-life of this substance?
    Answer 78sec

    3. How many rad of 200-keV X-rays cause the same amount of biological damage as 50 rad of heavy ions? Explain please.
    Answer 1000 rad.

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    https://brainmass.com/physics/half-life/radiation-biological-damage-bohr-model-atoms-66237

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    Response is in a word file QM.doc. Following is only the text part of the solution.

    1. An electron drops from the L shell to the K shell and gives off an X-ray with a wavelength of 0.0205 nm. What is the atomic number of this atom?
    Answer 78

    2. A radioactive substance has a decay constant equal to 8.9x10^-3s-1. What is the half-life of this substance?
    Answer 78sec

    3. How many rad of 200-keV X-rays cause the same amount of biological damage as 50 rad of heavy ions? Explain please.
    Answer 1000 rad

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    1. An electron drops from the L shell to the K shell and gives off an X-ray with a wavelength of 0.0205 nm. What is the atomic number of this atom?
    Answer 78

    From Bohr's model one can show, for an ...

    Solution Summary

    Solution is provided in a 4-page word document, with great detail. Each step is clearly shown. Equations are typed using Equation editor.

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