“118 ELEMENTS in the periodic table compose the planets and all the universes. Only 94 are found naturally and of these, 7 are novel gases that only form compounds with difficulty. This is the entire list of the fundamental known elements. The remaining 87 are the building blocks that combine to make compounds. Biological compounds, mainly carbon, hydrogen, oxygen and nitrogen with a little phosphorus and sulfur compose 99% of living structures.”
http://www.ptable.com/