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
Correct Answer:

Verified
Correct Answer:
Verified
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