• Question: how many different atoms are there in the world

    Asked by sinnita to Peter, Ben on 21 Nov 2011. This question was also asked by ilikescientist8.
    • Photo: Peter Williams

      Peter Williams answered on 21 Nov 2011:

      about 10^50 (1 with 50 zeros after it). around 35% of them are iron – this is the most abundant, followed by oxygen and silicon.

    • Photo: Ben Still

      Ben Still answered on 21 Nov 2011:

      The periodic table of elements lists all of the different atoms that are found in Nature or made by man in a lab – there are currently a total of about 118 http://www.ptable.com/

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