This element is the most common substance in the universe
Billions of years later, there's a new... [DOC] [TLE] The Elements - 2012 Book Archive [PAR] In the universe as a whole, the most common element is hydrogen (about 90% of 
... second highest percentage in the body, is relatively rare on Earth and does not 
even .... are useful to concisely represent the elements present in a substance.