Asked in ChemistryElements and Compounds
How many atoms are there on earth?
July 21, 2008 4:56PM
The chemical composition of the Earth (by mass) is:
The mass of the Earth is 5.97e24 kg = 5.97e27 g
Therefore the earth contains
The molar masses of these elements are:
Therefore the number of moles of each of these elements is:
for a total of 2.15e26 moles. Multiply by Avogadro's number to get number of atoms = 1.3e50 or so.
(what about the earth's atmoshere?)