A discussion on systematics of nuclear properties is presented. Mass, mass excess, and mass distribution within the nucleus is presented. The liquid drop model is described, with the nuclear parameters discussed. Trends related to magic numbers are introduced. 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. Spin, parity, and magnetic properties of the nucleus are discussed.
This video introduced some pretty cool topics. But some of it is harder to pick up and I would love to talk more about those topics in an office hour environment.
ReplyDeleteWe will have a review lecture on Friday. If you have any specific topics you would like to cover please let me know.
DeleteI just finished the Lecture as well as the chapter in Modern Nuclear Chemistry. I particularly enjoyed the section on Liquid-Drop Binding Energy.
ReplyDeletethanks for the comment
DeleteI just finished the lecture and it blew my mind.
ReplyDeletewow, what a terrific comment
ReplyDeleteLecture 2 helped me greatly by expanding on what little I had previously learned about mass excesses, binding energy, and the stability of nuclei. As for the topics covered relating to the various models of nuclear structure, I think I will have to go through more of the readings and review the lecture again before I would feel relatively comfortable in my understanding of the material.
ReplyDelete-Zach
thanks for the comment Zach. As for other models, we will discuss the shell model in detail in a later lecture on nuclear models (http://radchem.nevada.edu/classes/rfss/lect%208%20nucl%20struct%20models.html)
ReplyDeleteLecture two was interesting. The quiz is hand written.
ReplyDeleteThe lecture was kind of intense. The liquid binding energy is difficult at first to understand. The nuclear radii part was cool; I've been curious about how the nucleus fit together.
ReplyDeleteThanks for the comment. I will review the liquid drop model on Friday.
DeleteIn my opinion most of the topics were difficult for me to understand. I definitely I have to grow through it again.
ReplyDeleteIf you indicate areas you would like reviewed they will be covered on Friday.
DeleteAs a chemist, I feel pretty at home with the pretty straight forward Q value calculations at the beginning of the lecture. The next obvious step for me based on my own intuition would be to start thinking of the decays in terms of gibbs free energy as well. Is there a table of delta S values? Also, based upon Gibbs free energy equation I would expect that spontaneity of a particular decay could possibly depend on temperature (is this the case?).
ReplyDeleteThe decays can be thought of was energy transformations. The mass parabola shows energies, with the lowest energy isotope as the stable state.
ReplyDeleteThanks for the reply. Anybody who likes basic thermochem or wants to take a peek at the entropy side of the equation as well might be interested at looking at this website http://applet-magic.com/particlentropy.htm
Deleteexcellent relationship between 2nd law and nuclear reactions. For a nuclear reaction this may also have relevance in the Fermi gas model (http://th.physik.uni-frankfurt.de/~brat/LecturesWS1011/Lecture2.pdf) which we will also cover in the nuclear models presentation. In the Fermi gas model the nucleons are unconstrained within the nuclear potential.
DeleteAccidentally posted my Lecture 2 comments on Lecture 1's blog, so it's only fitting I should post my Lecture 1 comments on Lecture 2's blog (sorry). Superb lecture, it's been awhile since I've seen some of these concepts so it was a nice refresher, i.e. not too rudimentary yet not too complex. I also enjoyed that there was some history included, I find too many professors who are only concerned with the math and the formulas rather than with the origins of what we're studying.
ReplyDeletethanks for the comment
DeleteFinished viewing lecture 2 powerpoint. It looks like someone has already asked for a bit of clarification on nuclear properties during Friday's lecture.
ReplyDeletethanks for the comment
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