It's probably pretty good. If you feel the explanations you have been given were kinda lame - you deserve to know what really is going on when elements unite.
The actualities aren't as simplistic as you presumed, there is a lot more to the 'magnetic' kind of elemental attraction of polar molecules. And nonpolar functions aren't as simple either, in fact it's the most complex and unordered linking mechanism because it's not a 100% predictable I think.
Go ahead and get it over with, but hold comment in classes til they all reach that point in their studies. Reading ahead sometimes can get you in more trouble with the Prof. than you really need.