Sunday, January 6, 2019

CHEM 418 Nuclear Chemistry, Winter 2019: Lecture 2 Nuclear Properties

A discussion on systematics of nuclear properties are presented.  Mass, mass excess, and mass distribution within the nucleus is presented.   Mass excess data are used to calculate energies in decays.  Equations for determining nuclear radii are provided.  Models that are used to describe the stability of nuclei are introduced.  Nuclear shapes and structures are introduced. The lecture time is 48 minutes.  There is a 3 minute supplemental lecture on the Brookhaven National Laboratory (BNL) Q-value calculator.  The Russian site Q-value calculator (http://nrv.jinr.ru/nrv/webnrv/qcalc/), which has additional features, is also available.

The lecture is assigned on Thursday 10 January 2019 and due Tuesday 15 January 2018.  The answers to Lecture 2 PDF quiz will be posted Wednesday 16 January 2019.

27 comments:

  1. I have submitted quiz 2. I was wondering if we could get an example of the nuclear force field radii (Slide 19).

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    Replies
    1. The best example of nuclear force field radii is Rutherford scattering. In the classic experiment alpha particles interacted with the Coulomb force of nuclei, resulting in a scatter. Calculating the closest approach provides a means to measure a nucleus. More information can be found starting on page 29 of the textbook Nuclear and Radiochemistry.

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  2. Finished the lecture and submitted the quiz.

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  3. I have submitted quiz 2.

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  4. I have submitted quiz 2 pdf. I had problem opening the weblink for Q-value calculator below the lecture MP4, it always says failed to open page. So I just searched on google for it and it works fine.

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  5. Finished the quiz 2 and it's submitted. I found the nuclear binding energy and special relativity connection very cool, but I was also wondering if you could explain how they determined this.

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    Replies
    1. The change in mass during decay drove was observed. The energy of the decay was shown to be dependent on the mass change.

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  6. Quiz 2 has been submitted

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  7. Submitted PDF Quiz 2 via Canvas and as a form.

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  8. Quiz 2 has been submitted through canvas.

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  9. Quiz submitted via Canvas

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  10. lecture watched and quiz was sent to email via the " submit" button.

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  11. Quiz submitted via both email (submit button) and uploaded to canvas.

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  12. Completed and submitted

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  13. Lecture 2 is complete and quiz submitted.

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  14. Lecture 2 video has been watched and quiz submitted

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  15. I have completed and submitted quiz 2.

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  16. Reviewed lecture 2 and submitted quiz 2 on canvas.

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  17. thanks for your comments on the lecture.

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  18. I am not sure if anyone else is having this problem, but the answers to quiz 2 don't seem to be properly hyperlinked for me, so I am unable to view them.

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