Question

3. Which of the following is NOT true about the size of an atom?

A. A pure copper coin contains about 2.4 × 1022 atoms.

B. Atoms can be seen with the use of a scanning tunneling microscope.

C. A line 1 cm long contains 100,000,000 copper atoms.

D. Atoms cannot be seen with the naked eye.

E. Atoms are approximately the same size as a speck of dust.