CHEM 1210 Lecture Notes - Lecture 21: Cathode Ray Tube, Emission Spectrum, Cecilia Payne-Gaposchkin

• School: Ohio State University
• Department: Chemistry
• Course: CHEM 1210
• Professor: Shiyu Zhang

Document Summary

Look at slides for in depth on postulates. Equations given in class will be given on exam, but a general understanding is necessary from following examples. N is the principal quantum number (1/n )j. All energy levels in between full integers are not allowed . Need to remember generally how crt worked ngstr m filled the vacuum of the cathode ray tube with hydrogen. He shot the beam through a prism. Took the inverse of ngstr m"s 4 wavelengths which he explained through a. If n(initial)> n(final), energy is given off. If n(final)= , there is a complete removal of electrons. The more - an electron"s charge the closer to the nucleus (due to its positivity) The stronger the attraction to the nucleus. If you move far from ground state to 4j, energy is absorbed. Going from larger to smaller, energy is released. Sun is not made from iron, but rather hydrogen.