What is the biggest element in the atmosphere?



  1. 0 Votes

    The most commonly occurring element in our galaxy is Hydrogen at 739,000 parts per million by mass.  That means almost 3/4 of of all matter is comprised of Hydrogen! For a complete top-ten list please see:



  2. 0 Votes

    I perceived the question to be in relation to size.  If it is, Xenon is the biggest element with an atomic weight of 131.29 mass units.

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