Bob Schroeck Wrote:How many elements are there? A hundred and some, right? Wrong. That's how many are known. Some scientists think there are four or five thousand possible elements -- and http://www.telegraph.co.uk/science/larg ... known.html]they're planning on using the Large Hadron Collider to make them all.Of course according to our current knowledge most trans-uranic elements are pretty unstable.
And anything beyond iron is made by supernova explosions, so its pretty uncommon in the universe. Carbon, oxygen and nitrogen are common, because they are easy to create in stars...