 Okay, so this question, it's number eight on the exam, it says, according to Vesper theory, draw the structural formula of carbon tetrachloride, indicate the number of bonding electrons around the central atom, non-bonding electrons around the central atom, bond angle, bond polarity, and show the overall dipole moment of this molecule. So the first thing we want to do is draw the structural formula of CCl4. So we can go through the whole thing, if you would like, from starting with the atoms and going to the structural formula if you need. Remember, carbon has four valence electrons around it, and chlorine has seven. So we've got chlorine there, and CCl4, so it already tells you how many chlorines you're going to be hearing in this molecule. Good structure, that doesn't show the structural detail of it, it doesn't show the bond angles and whatnot. So you know that there's four electron zones around here, and so they have to be as far apart from each other as possible. So the structural formula, this is the Lewis structure, so the structural formula is going to be a carbon, four chlorines around it in a tetrahedral fashion. The way these chlorines are bonded around the carbon at that bond angle is 109.5 degrees.