IIRC, normal stars are able to fuse together things up until iron, at which point (for some reason I don't understand) fusion ceases to be able to sufficiently power the star.
http://en.wikipedia.org/wiki/Iron_peak has a pretty straightforward explanation for why the usual channels for element production stop at Iron.
I thought this may be of interest to the LW community. Jacob Barnett is a 12-year old male who taught himself all of high school math (algebra through calculus), has a currently scored math IQ of 170 (for what that's worth) and is currently on track to become a researcher of astrophysics. His current major news worthy claim-to-fame (aside from being really young): The Big Bang Theory is currently incorrect (I believe the article states he has something about a lack of carbon in the model), and he's planning to develop a new theory.
I haven't learned anything serious in physics, so I have nothing to note on his claim. I realize the news article cited puts him claim fairly generally, so I'll ask this: Can someone explain how elements are generally modeled to have formed from the big bang? And is there anything that it Jacob may be missing in the current literature?