Chemistry 101, Lecture on April 9th
Some more chemical principles; bonding and shapes of molecules (important
factor in molecular interactions).
Chromatography, process for the separation of component of a mixture based on
the relative affinities of the components for two phases, one of which moves
relative to the other.
Often depends in the polarity of the molecules involved.
The extent to which charge is separated in bonds and the shape of the
Chemists visualize electrons as a cloud of negative charge that can be distributed
between atoms according to the relative electronegativities.
Bonds are vibrating. The oscillating electric dipole can interact with an external
field such as the electrical part of a light beam and extract energy from it by a
process of resonance. The frequencies