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What is the mass in grams of one atom of a particular isotope?

What is the mass in grams of one atom of a particular isotope?. 12 C 6. Consider 1 atom of C-12. The isotope notation is:. 6 protons. X 1.67 x 10 -24 g/proton = . 1.002 x 10 -23 g. 6 neutrons. X 1.67 x 10 -24 g/neutron = . 1.002 x 10 -23 g. 6 electrons.

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