Updated:  10/14/04  
                  
                            Chapter 27 Early Quantum Theory
                                       and Models of the Atom


          A. Instruction to students:
                        1)  Homework:
                             a) Read carefully all Sections except  Section 27-4, -7, and -9.
                             b) Write a report as specified in the lecture note of Chapter 28.
 
          B. Biomedical (and technological) application
                     Electron microscopes, Section 27-7
                           (as optional study.)


          C. Lectures and study guideline
                          From this Chapter on, we learn modern physics that has been discovered
                          in the twentieth century.   As such, conceptual understanding of the materials
                          is a must.  You should make yourself familiar with the new concepts in this
                          Chapter.