Скачать или смотреть CHEM 312 Spring 2026 Lecture 5 Beta Decay

Beta decay is presented in this lecture. The neutrino hypothesis and its relationship with beta decay is discussed. A review of Q value calculations for beta decay is provided. The importance of spin and parity, and how it can be used to assess beta decay, is discussed. Modeling beta decay through the weak force is briefly discussed. Selection rules in beta decay and beta transitions are explained. Calculating logft and its relation to spin and parity are presented. Double beta decay is discussed. The lecture time is 52 minutes.

A primary outcomes for the beta decay lecture is to understand and identify the types of beta decay; beta minus, positron, and electron capture. One should be able to determine the Q values for beta decay. The lecture information provides the details necessary for identifying which isotopes can undergo which type of beta decay, and which isotopes can decay by multiple beta decay routes. The neutrino hypothesis should be comprehended and understood. The roles of spin and parity in beta decay should be understood and utilized to explain decay properties. This extends to the calculation of comparative half-lives to assign transitions based on values, change in spin and parity. Double beta decay should be understood to occur and those isotopes which can decay by this method identified.