If the Diameter of a Carbon Atom Is Approximately 140

question 94

Multiple Choice

If the diameter of a carbon atom is approximately 140 pm, how many carbon atoms lined up side to side would span a pencil lead with a diameter of about 0.7 mm?

• A)5 *10¹ atoms
• B)5* 10³ atoms
• C)5 * 10⁵ atoms
• D)5*10⁶ atoms
• E)5 * 10⁹ atoms

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