I've read something interesting here about the arabic letters arranged in the quran will correspond to the elements in the periodic table and the number of letters before and up to those letter will show the proton number of the element

http://www.miraclesofthequran.com/mathematical_15.html

But I wonder... wouldn't there be other instances in the Quran where that combination of letters will come again? And this occurrence could be just a coincidence and the surah don't really talk about the element itself.