A black dot used as a full stop at the end of a sentence has a mass of about one attogram. Assuming that the dot is made up of carbon, calculate the approximate number of carbon atoms presents in the dot?
None of the above
ass of c carbon in the atom =1 attogram = 10–18 g
Gram atomic mass of carbon = 12 g
i.e., 12 g of carbon contain atoms of carbon
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