1.9 1.9 The Shapes of Some Simple Molecules
Valence Shell Electron Pair Repulsions Valence
The most stable arrangement of groups attached to a central atom is the one that has the maximum separation of electron pairs the (bonded or nonbonded). (bonded
Phys. Chem. I: (CHEM211): Mid-Term Exam.
19:30-22:30, Oct.19, 2007.  (10) In this Physical Chemistry course, the professor said that an excited state (e.g. 3s orbital) in the H atom has a large radius, and so it tends to be delocalized (i.e., dispersed
Phys. Chem I : (CHEM 211) : Final Exam. Dec. 22, 2007
* From 9:30 am till 8:00 pm (10.5 hrs)  (5x5=25pts) Discuss the following (a) IR vs. Raman, Frank-Condon factor, (b) Einstein Transition Probability, (c) laser, 3-level and 4level lasers, excimer la
1. Which one is incorrect about the electrons in atom? Its "degenerate pressure" is caused by Pauli's exclusion principle. Triplet is more stable than singlet because its spatial part is anti-symmetric. Its LS coupling is caused by relativistic effect. Wi