Looking at Molecular
First let's examine a
variety of representations of the same molecule, hydrogen chloride (HCl).
Place the cursor on each molecule, click, and rotate. Which element is more electronegative? What direction do the electrons
migrate in the bond?
On the electrostatic potential map,
which illustrates the distribution of charge on a molecule, red
is negative and blue is positive (see figure
below for the red-white-blue color scheme).
Now let's examine methane, CH4.
This electrostatic potential map uses the Rasmol color scheme given below: