Question

Which of the following says why it's not possible to see an atom with our naked eyes?

• A. The atom of an element does not exist independently.
• B. An atom is a million times smaller than the thickest human hair.
• C. An atom is bigger than a molecule.
• D. The size of an atom is so small that it is not possible to see it with naked eyes.

Answer 1

Answer: (A), (B), (D)

The correct options are
A The atom of an element does not exist independently.
B An atom is a million times smaller than the thickest human hair.
D The size of an atom is so small that it is not possible to see it with naked eyes.

1. The size of an atom is so small that it is not possible to see it with naked eyes. Infact an atom is a million times smaller than the thickest human hair. The diameter of an atom ranges from about 0.1 to 0.5 nanometers (1 × 10^-10 m to 5 × 10^-10 m).
2. Further, the atom of an element does not exist independently.