Problem: A period at the end of sentence written with a graphite pencil has a diameter of 1.6 mm. How many carbon atoms would it take to line up across the period, if a single carbon atom has a diameter of 150 pm?

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A period at the end of sentence written with a graphite pencil has a diameter of 1.6 mm. How many carbon atoms would it take to line up across the period, if a single carbon atom has a diameter of 150 pm?

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