CHM120H5 Study Guide - Winter 2018, Comprehensive Midterm Notes - Vsepr Theory, Atomic Orbital, Boiling Point
Document Summary
Bohr circular orbits of electrons around central nucleus of protons; quantization of orbital angular momentum; principal quantum number, n mvr=nh/2 . In physics, a standing wave also known as a stationary wave is a wave that remains in a constant position. Electrons can be placed in definite orbits around the nucleus: It means that the electron can take only definite orbits and not any random orbit. We can see different standing waves around the nucleus. Chirality: any molecule with a non superimposable mirror image is said to be chiral, any carbon with 4 different substituents will be a chiral center, a pair of non superimposable mirror images are called a pair of enantiomers. Optical activity: enantiomers have all the same physical properties except one. The direction they rotate the plane of plane-polarized light. Each one of the enantiomers will rotate the plane the same amount, but in opposite directions. Dextrorotatory = rotates the plane to the right.
