HW#12: pg. 97 Rev 7 – 9; CST 7 – 9
Rev 7 – 9
7. Give a brief description of a hydrogen atom.
8. What does it mean to say that a physical quantity is quantized? Why do we think that light is quantized?
9. What is the normal condition for atoms? What is an excited atom? What are orbitals?
CST 7 – 9
7. Compared with a complex atom like neon, a simple atom such as hydrogen has (a) more excited states; (b) fewer excited states; (c) the same number of excited states.
8. Compared with cooler stars, the hottest stars have absorption lines that are (a) thin and distinct; (b) broad and fuzzy; (c) identical to the lines in cooler stars.
9. Compared with slowly rotating stars, the fastest spinning stars have absorption lines that are (a) thin and distinct; (b) broad and fuzzy; (c) identical to the lines in the slowly rotating stars.